QA catalogue for analysing library data

by document types: all · Books · Continuing Resources · Music · Maps · Visual Materials · Mixed Materials · Computer Files

number of records: 38,496

Fields		fields	pos./subf.		count	%
Fields defined in MARC21
00X	Control Fields	2	39		38,496	100.00
01X-09X	Numbers and Code	16	68		38,463	99.91
1XX	Main Entry	3	30		27,574	71.63
20X-24X	Title	6	42		38,494	99.99
25X-28X	Edition, Imprint	6	25		38,420	99.80
3XX	Physical Description	8	36		38,209	99.25
4XX	Series Statement	1	4		49	0.13
5XX	Note	18	71		29,307	76.13
6XX	Subject Access	8	59		30,741	79.86
70X-75X	Added Entry	5	45		30,846	80.13
76X-78X	Linking Entry	12	86		27,725	72.02
80X-83X	Series Added Entry	2	8		8	0.02
841-88X	Holdings, Location, Alternate Graphics	2	11		10,508	27.30
Holdings	MARC Holdings tags	1	4		4	0.01
Fields defined in extensions of MARC
OCLC	OCLCMARC tags	1	3		8,095	21.03
KBR	Locally defined tags of the Royal Library of Belgium	1	9		38,366	99.66
unknown	unknown origin	2	5		2	0.01
Total number of data elements		94	545

				records		occurences
				count	%	count	min	max	⌀	σ
00X: Control Fields
Leader
00	Record length			38,496	100.00	38,496	1
05	Record status			38,496	100.00	38,496	1
06	Type of record			38,496	100.00	38,496	1
07	Bibliographic level			38,496	100.00	38,496	1
08	Type of control			38,496	100.00	38,496	1
09	Character coding scheme			38,496	100.00	38,496	1
10	Indicator count			38,496	100.00	38,496	1
11	Subfield code count			38,496	100.00	38,496	1
12	Base address of data			38,496	100.00	38,496	1
17	Encoding level			38,496	100.00	38,496	1
18	Descriptive cataloging form			38,496	100.00	38,496	1
19	Multipart resource record level			38,496	100.00	38,496	1
20	Length of the length-of-field portion			38,496	100.00	38,496	1
21	Length of the starting-character-position portion			38,496	100.00	38,496	1
22	Length of the implementation-defined portion			38,496	100.00	38,496	1
23	Undefined			38,496	100.00	38,496	1
001 — Control Number				38,496	100.00	38,496	1
005 — Date and Time of Latest Transaction				4	0.01	4	1
007 — Physical Description
Common
00	Category of material			5,766	14.98	5,766	1	2	1.04	0.00
Map
01	Specific material designation			5,761	14.97	5,761	1
03	Color			7	0.02	7	1
04	Physical medium			7	0.02	7	1
05	Type of reproduction			7	0.02	7	1
06	Production/reproduction details			7	0.02	7	1
07	Positive/negative aspect			7	0.02	7	1
Text
01	Specific material designation			5	0.01	5	1	2	1.00	0.00
008 — General Information
All Materials
00	Date entered on file			36,063	93.68	36,063	1
06	Type of date/Publication status			36,063	93.68	36,063	1
07	Date 1			36,063	93.68	36,063	1
11	Date 2			36,063	93.68	36,063	1
15	Place of publication, production, or execution			36,063	93.68	36,063	1
35	Language			35,822	93.05	35,822	1
38	Modified record			35,818	93.04	35,818	1
39	Cataloging source			35,818	93.04	35,818	1
Maps
18	Relief			36,063	93.68	36,063	1
22	Projection			36,063	93.68	36,063	1
25	Type of cartographic material			35,822	93.05	35,822	1
28	Government publication			35,822	93.05	35,822	1
29	Form of item			35,822	93.05	35,822	1
31	Index			35,822	93.05	35,822	1
33	Special format characteristics			35,822	93.05	35,822	1
01X-09X: Numbers and Code
010 — Library of Congress Control Number				7	0.02	7	1
$#	number/occurrence of field (in KBR version)			7	0.02	7	1
$a	LC control number			7	0.02	7	1
$z	Canceled/invalid LC control number			3	0.01	3	1	2	1.17	0.07
017 — Copyright or Legal Deposit Number				2,398	6.23	2,422	1	254	1.03	0.00
$ind2	Display constant controller			2,398	6.23	2,422	1	254	1.03	0.00
$#	number/occurrence of field (in KBR version)			1,178	3.06	1,183	1	45	1.01	0.00
$a	Copyright or legal deposit number			1,836	4.77	1,860	1	254	1.03	0.00
$b	Assigning agency			228	0.59	228	1	16	1.00	0.00
$z	Canceled/invalid copyright or legal deposit number			557	1.45	557	1	4	1.01	0.00
020 — International Standard Book Number				2,537	6.59	2,554	1	200	1.04	0.00
$#	number/occurrence of field (in KBR version)			1,148	2.98	1,155	1	84	1.03	0.00
$a	International Standard Book Number			1,277	3.32	1,293	1	100	1.04	0.00
$c	Terms of availability			1,806	4.69	1,807	1	63	1.01	0.00
$q	Qualifying information			436	1.13	436	1	84	1.10	0.00
$z	Canceled/invalid ISBN			14	0.04	14	1	100	1.11	0.02
$8	Field link and sequence number			1	0.00	5	5
022 — International Standard Serial Number				2	0.01	2	1	49	1.00	0.00
$ind1	Level of international interest			2	0.01	2	1	49	1.00	0.00
$#	number/occurrence of field (in KBR version)			2	0.01	2	1	4	1.01	0.00
$a	International Standard Serial Number			2	0.01	2	1	49	1.00	0.00
024 — Other Standard Identifier				64	0.17	64	1	11	1.01	0.00
$ind1	Type of standard number or code			64	0.17	64	1	11	1.01	0.00
$ind2	Difference indicator			64	0.17	64	1	11	1.01	0.00
$#	number/occurrence of field (in KBR version)			50	0.13	50	1	4	1.01	0.00
$a	Standard number or code			64	0.17	64	1	11	1.01	0.00
028 — Publisher or Distributor Number				1	0.00	1	1	21	1.54	0.00
$ind1	Type of number			1	0.00	1	1	21	1.54	0.00
$ind2	Note/added entry controller			1	0.00	1	1	21	1.54	0.00
$a	Publisher or distributor number			1	0.00	1	1	21	1.54	0.00
034 — Coded Cartographic Mathematical Data				5,530	14.37	5,544	1	3	1.00	0.00
$ind1	Type of scale			5,530	14.37	5,544	1	3	1.00	0.00
$ind2	Type of ring			5,530	14.37	5,544	1	3	1.00	0.00
$#	number/occurrence of field (in KBR version)			5,408	14.05	5,418	1	2	1.00	0.00
$a	Category of scale			5,499	14.28	5,513	1	3	1.00	0.00
$b	Constant ratio linear horizontal scale			229	0.59	233	1	3	1.01	0.01
$d	Coordinates - westernmost longitude			297	0.77	305	1	3	1.03	0.01
$e	Coordinates - easternmost longitude			233	0.61	241	1	3	1.03	0.01
$f	Coordinates - northernmost latitude			233	0.61	241	1	3	1.03	0.01
$g	Coordinates - southernmost latitude			233	0.61	241	1	3	1.03	0.01
$1	Real World Object URI			17	0.04	17	1
$2	Source			17	0.04	17	1
035 — System Control Number				18	0.05	20	1	5	1.00	0.00
$#	number/occurrence of field (in KBR version)			4	0.01	6	1	4	1.02	0.00
$a	System control number			18	0.05	20	1	5	1.00	0.00
040 — Cataloging Source				38,461	99.91	38,469	1	4	1.00	0.00
$#	number/occurrence of field (in KBR version)			24,624	63.97	24,632	1	4	1.00	0.00
$a	Original cataloging agency			38,461	99.91	38,469	1	4	1.00	0.00
$b	Language of cataloging			13,484	35.03	13,484	1	4	1.00	0.00
$c	Transcribing agency			7	0.02	7	1
$d	Modifying agency			8	0.02	13	1	30	1.22	0.01
$e	Description conventions			13,028	33.84	13,028	1	4	1.00	0.00
041 — Language Code				35,688	92.71	35,703	1	5	1.00	0.00
$ind1	Translation indication			35,688	92.71	35,703	1	5	1.00	0.00
$ind2	Source of code			35,688	92.71	35,703	1	5	1.00	0.00
$#	number/occurrence of field (in KBR version)			21,573	56.04	21,588	1	5	1.00	0.00
$a	Language code of text/sound track or separate title			35,688	92.71	37,016	1	16	1.03	0.00
$h	Language code of original			17	0.04	17	1	12	1.00	0.00
043 — Geographic Area Code				1	0.00	1	1
$#	number/occurrence of field (in KBR version)			1	0.00	1	1
$a	Geographic area code			1	0.00	1	1	5	1.13	0.00
044 — Country of Publishing/Producing Entity Code				35,669	92.66	35,671	1	4	1.00	0.00
$#	number/occurrence of field (in KBR version)			21,686	56.33	21,688	1	4	1.00	0.00
$a	MARC country code			35,669	92.66	38,546	1	8	1.04	0.00
050 — Library of Congress Call Number				6	0.02	6	1	2	1.04	0.00
$ind1	Existence in LC collection			6	0.02	6	1	2	1.04	0.00
$ind2	Source of call number			6	0.02	6	1	2	1.04	0.00
$#	number/occurrence of field (in KBR version)			4	0.01	4	1	2	1.03	0.00
$a	Classification number			6	0.02	6	1	2	1.04	0.00
$b	Item number			4	0.01	4	1	2	1.12	0.00
052 — Geographic Classification				6	0.02	6	1
$ind1	Code source			6	0.02	6	1
$#	number/occurrence of field (in KBR version)			6	0.02	6	1
$a	Geographic classification area code			6	0.02	6	1
$b	Geographic classification subarea code			4	0.01	4	1
080 — Universal Decimal Classification Number				1	0.00	1	1	4	1.13	0.00
$ind1	Type of edition			1	0.00	1	1	4	1.13	0.00
$a	Universal Decimal Classification number			1	0.00	1	1	4	1.13	0.00
082 — Dewey Decimal Classification Number				5	0.01	5	1	4	1.03	0.00
$ind1	Type of edition			5	0.01	5	1	4	1.03	0.00
$ind2	Source of classification number			5	0.01	5	1	4	1.03	0.00
$#	number/occurrence of field (in KBR version)			5	0.01	5	1	2	1.01	0.00
$a	Classification number			5	0.01	5	1	4	1.04	0.00
$2	Edition information			5	0.01	5	1	2	1.00	0.00
1XX: Main Entry
100 — Main Entry - Personal Name				12,440	32.32	12,445	1	4	1.00	0.00
$ind1	Type of personal name entry element			12,440	32.32	12,445	1	4	1.00	0.00
$#	number/occurrence of field (in KBR version)			5,483	14.24	5,488	1	4	1.00	0.00
$*	Link with identifier (in KBR version)			12,440	32.32	12,445	1	4	1.00	0.00
$@	Language of field (in KBR version)			5	0.01	5	1	2	1.00	0.00
$a	Personal name			12,440	32.32	12,445	1	4	1.00	0.00
$b	Numeration			272	0.71	272	1	2	1.00	0.00
$c	Titles and words associated with a name			2,382	6.19	2,407	1	9	1.03	0.00
$d	Dates associated with a name			10,812	28.09	10,818	1	4	1.00	0.00
$g	Miscellaneous information			99	0.26	101	1	2	1.00	0.00
$j	Attribution qualifier			1	0.00	1	1
$q	Fuller form of name			325	0.84	326	1	3	1.00	0.00
$0	Authority record control number or standard number			1	0.00	1	1
$1	Real World Object URI			7,425	19.29	7,426	1	4	1.00	0.00
$4	Relationship			5,656	14.69	6,031	1	6	1.05	0.00
110 — Main Entry - Corporate Name				15,607	40.54	15,852	1	3	1.00	0.00
$ind1	Type of corporate name entry element			15,607	40.54	15,852	1	3	1.00	0.00
$#	number/occurrence of field (in KBR version)			5,765	14.98	5,942	1	3	1.01	0.00
$*	Link with identifier (in KBR version)			15,607	40.54	15,852	1	3	1.00	0.00
$@	Language of field (in KBR version)			1,118	2.90	1,282	1	3	1.03	0.00
$a	Corporate name or jurisdiction name as entry element			15,606	40.54	15,851	1	3	1.00	0.00
$b	Subordinate unit			1,210	3.14	1,380	1	5	1.21	0.00
$c	Location of meeting			410	1.07	410	1	3	1.02	0.00
$d	Date of meeting or treaty signing			4,644	12.06	4,644	1
$g	Miscellaneous information			9,830	25.54	9,844	1	3	1.00	0.00
$l	Language of a work			15	0.04	15	1
$1	Real World Object URI			187	0.49	187	1	2	1.00	0.00
$4	Relationship			8,367	21.73	15,637	1	6	1.21	0.00
130 — Main Entry - Uniform Title				131	0.34	131	1
$ind1	Nonfiling characters			131	0.34	131	1
$#	number/occurrence of field (in KBR version)			131	0.34	131	1
$*	Link with identifier (in KBR version)			131	0.34	131	1
$a	Uniform title			131	0.34	131	1
20X-24X: Title
210 — Abbreviated Title				1	0.00	1	1	10	1.49	0.01
$ind1	Title added entry			1	0.00	1	1	10	1.49	0.01
$ind2	Type			1	0.00	1	1	10	1.49	0.01
$a	Abbreviated title			1	0.00	1	1	10	1.49	0.01
240 — Uniform Title				1,161	3.02	1,161	1
$ind1	Uniform title printed or displayed			1,161	3.02	1,161	1
$ind2	Nonfiling characters			1,161	3.02	1,161	1
$#	number/occurrence of field (in KBR version)			352	0.91	352	1
$*	Link with identifier (in KBR version)			1,161	3.02	1,161	1
$a	Uniform title			1,161	3.02	1,161	1
$f	Date of a work			1	0.00	1	1
$g	Miscellaneous information			1	0.00	1	1
$p	Name of part/section of a work			27	0.07	27	1
243 — Collective Uniform Title				1	0.00	1	1
$ind1	Uniform title printed or displayed			1	0.00	1	1
$ind2	Nonfiling characters			1	0.00	1	1
$#	number/occurrence of field (in KBR version)			1	0.00	1	1
$a	Uniform title			1	0.00	1	1
245 — Title Statement				38,494	99.99	38,496	1	4	1.01	0.00
$ind1	Title added entry			38,494	99.99	38,496	1	4	1.01	0.00
$ind2	Nonfiling characters			38,494	99.99	38,496	1	4	1.01	0.00
$#	number/occurrence of field (in KBR version)			26,093	67.78	26,095	1	4	1.02	0.00
$a	Title			38,494	99.99	38,496	1	9	1.01	0.00
$b	Remainder of title			12,683	32.95	12,683	1	10	1.00	0.00
$c	Statement of responsibility, etc.			21,735	56.46	21,737	1	4	1.00	0.00
$h	Medium			25,905	67.29	25,907	1	3	1.01	0.00
$n	Number of part/section of a work			610	1.58	633	1	25	1.10	0.00
$p	Name of part/section of a work			116	0.30	135	1	48	1.12	0.00
$6	Linkage			1	0.00	1	1
246 — Varying Form of Title				2,290	5.95	2,972	1	24	1.21	0.00
$ind1	Note/added entry controller			2,290	5.95	2,972	1	24	1.21	0.00
$ind2	Type of title			2,290	5.95	2,972	1	24	1.21	0.00
$#	number/occurrence of field (in KBR version)			940	2.44	1,160	1	24	1.34	0.00
$@	Language of field (in KBR version)			35	0.09	35	1	5	1.92	0.00
$a	Title proper/short title			2,278	5.92	2,960	1	24	1.21	0.00
$b	Remainder of title			587	1.52	742	1	6	1.10	0.00
$f	Date or sequential designation			1	0.00	1	1	3	1.50	0.07
$g	Miscellaneous information			13	0.03	14	1	8	1.06	0.00
$h	Medium			7	0.02	8	1	5	1.64	0.12
$i	Display text			27	0.07	28	1	10	1.03	0.00
$n	Number of part/section of a work			2	0.01	7	1	9	1.09	0.01
247 — Former Title				2	0.01	3	1	3	1.03	0.00
$ind1	Title added entry			2	0.01	3	1	3	1.03	0.00
$ind2	Note controller			2	0.01	3	1	3	1.03	0.00
$#	number/occurrence of field (in KBR version)			1	0.00	2	1	2	1.02	0.01
$a	Title			2	0.01	3	1	3	1.03	0.00
$b	Remainder of title			1	0.00	1	1
$f	Date or sequential designation			1	0.00	2	1	3	1.03	0.01
25X-28X: Edition, Imprint
250 — Edition Statement				4,318	11.22	4,622	1	4	1.01	0.00
$#	number/occurrence of field (in KBR version)			3,350	8.70	3,653	1	4	1.02	0.00
$@	Language of field (in KBR version)			150	0.39	310	1	3	2.02	0.00
$a	Edition statement			4,318	11.22	4,622	1	4	1.01	0.00
$b	Remainder of edition statement			183	0.48	183	1	2	1.00	0.00
254 — Musical Presentation Statement				1	0.00	1	1
$#	number/occurrence of field (in KBR version)			1	0.00	1	1
$a	Musical presentation statement			1	0.00	1	1	2	1.00	0.00
255 — Cartographic Mathematical Data				30,351	78.84	30,451	1	5	1.00	0.00
$#	number/occurrence of field (in KBR version)			18,869	49.02	18,909	1	4	1.00	0.00
$a	Statement of scale			29,774	77.34	29,858	1	5	1.00	0.00
$b	Statement of projection			887	2.30	887	1
$c	Statement of coordinates			3,372	8.76	3,395	1	4	1.01	0.00
$f	Outer G-ring coordinate pairs			17	0.04	17	1
263 — Projected Publication Date				1	0.00	1	1
$#	number/occurrence of field (in KBR version)			1	0.00	1	1
$a	Projected publication date			1	0.00	1	1
264 — Production, Publication, Distribution, Manufacture, and Copyright Notice				38,227	99.30	44,590	1	33	1.05	0.00
$ind1	Sequence of statements			38,227	99.30	44,590	1	33	1.05	0.00
$ind2	Function of entity			38,227	99.30	44,590	1	33	1.05	0.00
$#	number/occurrence of field (in KBR version)			24,552	63.78	27,505	1	30	1.05	0.00
$@	Language of field (in KBR version)			1,854	4.82	1,860	1	3	1.01	0.00
$a	Place of production, publication, distribution, manufacture			34,847	90.52	37,949	1	22	1.13	0.00
$b	Name of producer, publisher, distributor, manufacturer			34,790	90.37	38,459	1	28	1.07	0.00
$c	Date of production, publication, distribution, manufacture, or copyright notice			38,104	98.98	44,043	1	32	1.05	0.00
270 — Address				1	0.00	2	1	4	1.78	0.26
$ind1	Level			1	0.00	2	1	4	1.78	0.26
$ind2	Type of address			1	0.00	2	1	4	1.78	0.26
$a	Address			1	0.00	1	1
$b	City			1	0.00	1	1
$c	State or province			1	0.00	2	1	4	1.78	0.26
3XX: Physical Description
300 — Physical Description				38,033	98.80	38,082	1	10	1.03	0.00
$#	number/occurrence of field (in KBR version)			24,314	63.16	24,348	1	10	1.05	0.00
$a	Extent			37,507	97.43	37,516	1	10	1.01	0.00
$b	Other physical details			27,100	70.40	27,132	1	10	1.01	0.00
$c	Dimensions			36,487	94.78	36,498	1	4	1.00	0.00
$e	Accompanying material			1,093	2.84	1,093	1	4	1.00	0.00
306 — Playing Time				1	0.00	1	1
$a	Playing time			1	0.00	1	1	6	1.02	0.01
$c				1	0.00	1	1
336 — Content Type				21,906	56.90	21,907	1	3	1.01	0.00
$#	number/occurrence of field (in KBR version)			9,758	25.35	9,759	1	3	1.01	0.00
$a	Content type term			21,906	56.90	24,293	1	6	1.23	0.00
$b	Content type code			16	0.04	16	1	3	1.06	0.01
$2	Source			21,845	56.75	21,846	1	3	1.00	0.00
337 — Media Type				21,906	56.90	21,906	1	2	1.00	0.00
$#	number/occurrence of field (in KBR version)			9,758	25.35	9,758	1	2	1.00	0.00
$a	Media type term			21,906	56.90	21,906	1	2	1.00	0.00
$b	Media type code			16	0.04	16	1
$2	Source			21,845	56.75	21,845	1	2	1.00	0.00
338 — Carrier Type				21,914	56.93	21,914	1	2	1.00	0.00
$#	number/occurrence of field (in KBR version)			9,766	25.37	9,766	1	2	1.00	0.00
$a	Carrier type term			21,854	56.77	21,854	1	2	1.00	0.00
$b	Carrier type code			1	0.00	1	1	2	1.00	0.00
$2	Source			21,859	56.78	21,859	1	2	1.00	0.00
340 — Physical Medium				29	0.08	29	1	8	1.01	0.00
$#	number/occurrence of field (in KBR version)			28	0.07	28	1	4	1.00	0.00
$a	Material base and configuration			2	0.01	2	1	8	1.01	0.00
$d	Information recording technique			12	0.03	12	1
$l	Binding			15	0.04	15	1	3	1.00	0.00
342 — Geospatial Reference Data				16	0.04	16	1
$ind1	Geospatial reference dimension			16	0.04	16	1
$ind2	Geospatial reference method			16	0.04	16	1
$#	number/occurrence of field (in KBR version)			16	0.04	16	1
$a	Name			16	0.04	16	1
$b	Coordinate units or distance units			16	0.04	16	1
$c	Latitude resolution			16	0.04	16	1
$d	Longitude resolution			16	0.04	16	1
$q	Ellipsoid name			16	0.04	16	1
$r	Semi-major axis			16	0.04	16	1
$s	Denominator of flattening ratio			16	0.04	16	1
362 — Dates of Publication and/or Sequential Designation				6	0.02	6	1	3	1.00	0.00
$ind1	Format of date			6	0.02	6	1	3	1.00	0.00
$#	number/occurrence of field (in KBR version)			3	0.01	3	1	3	1.01	0.00
$a	Dates of publication and/or sequential designation			6	0.02	6	1	4	1.00	0.00
4XX: Series Statement
490 — Series Statement				49	0.13	49	1	5	1.01	0.00
$ind1	Series tracing policy			49	0.13	49	1	5	1.01	0.00
$#	number/occurrence of field (in KBR version)			32	0.08	32	1	3	1.02	0.00
$a	Series statement			49	0.13	52	1	5	1.02	0.00
$v	Volume/sequential designation			32	0.08	33	1	8	1.45	0.00
5XX: Note
500 — General Note				19,257	50.02	27,590	1	76	1.34	0.00
$#	number/occurrence of field (in KBR version)			14,559	37.82	21,728	1	76	1.27	0.00
$@	Language of field (in KBR version)			1	0.00	1	1	3	1.08	0.00
$a	General note			19,257	50.02	27,589	1	76	1.34	0.00
501 — With Note				22	0.06	22	1	2	1.01	0.01
$#	number/occurrence of field (in KBR version)			21	0.05	21	1
$a	With note			22	0.06	22	1	2	1.01	0.01
504 — Bibliography, etc. Note				10	0.03	10	1	9	1.05	0.00
$#	number/occurrence of field (in KBR version)			10	0.03	10	1	9	1.05	0.00
$a	Bibliography, etc. note			10	0.03	10	1	9	1.05	0.00
505 — Formatted Contents Note				1,904	4.95	2,016	1	214	3.13	0.02
$ind1	Display constant controller			1,904	4.95	2,016	1	214	3.13	0.02
$ind2	Level of content designation			1,904	4.95	2,016	1	214	3.13	0.02
$#	number/occurrence of field (in KBR version)			870	2.26	920	1	214	2.67	0.05
$a	Formatted contents note			403	1.05	455	1	35	1.86	0.02
$g	Miscellaneous information			1	0.00	1	1	291	25.82	1.35
$r	Statement of responsibility			3	0.01	3	1	84	4.47	0.05
$t	Title			1,506	3.91	1,623	1	214	4.71	0.03
510 — Citation/References Note				3,681	9.56	3,987	1	10	1.14	0.00
$ind1	Coverage/location in source			3,681	9.56	3,987	1	10	1.14	0.00
$#	number/occurrence of field (in KBR version)			1,206	3.13	1,333	1	10	1.25	0.00
$a	Name of source			3,681	9.56	3,987	1	10	1.14	0.00
$b	Coverage of source			2	0.01	2	1
$c	Location within source			7	0.02	8	1	4	1.06	0.00
$u	Uniform Resource Identifier			1	0.00	1	1
511 — Participant or Performer Note				10	0.03	16	1	20	1.17	0.00
$ind1	Display constant controller			10	0.03	16	1	20	1.17	0.00
$#	number/occurrence of field (in KBR version)			9	0.02	14	1	8	1.17	0.00
$a	Participant or performer note			10	0.03	16	1	20	1.17	0.00
518 — Date/Time and Place of an Event Note				2	0.01	2	1	5	1.01	0.00
$#	number/occurrence of field (in KBR version)			2	0.01	2	1	3	1.03	0.01
$a	Date/time and place of an event note			2	0.01	2	1	5	1.01	0.00
520 — Summary, etc.				27	0.07	27	1	7	1.02	0.00
$ind1	Display constant controller			27	0.07	27	1	7	1.02	0.00
$#	number/occurrence of field (in KBR version)			27	0.07	27	1	6	1.00	0.00
$a	Summary, etc.			27	0.07	27	1	7	1.02	0.00
$c	Assigning source			10	0.03	10	1	2	1.06	0.00
$u	Uniform Resource Identifier			3	0.01	3	1
521 — Target Audience Note				1	0.00	1	1	2	1.00	0.00
$ind1	Display constant controller			1	0.00	1	1	2	1.00	0.00
$#	number/occurrence of field (in KBR version)			1	0.00	1	1	2	1.00	0.00
$a	Target audience note			1	0.00	1	1	3	1.01	0.00
530 — Additional Physical Form available Note				21	0.05	21	1	4	1.01	0.00
$a	Additional physical form available note			21	0.05	21	1	4	1.01	0.00
533 — Reproduction Note				1	0.00	1	1
$#	number/occurrence of field (in KBR version)			1	0.00	1	1
$a	Type of reproduction			1	0.00	1	1
$b	Place of reproduction			1	0.00	1	1
$c	Agency responsible for reproduction			1	0.00	1	1
$d	Date of reproduction			1	0.00	1	1
534 — Original Version Note				10	0.03	10	1
$#	number/occurrence of field (in KBR version)			10	0.03	10	1
$a	Main entry of original			8	0.02	8	1
$c	Publication, distribution, etc. of original			1	0.00	1	1
$p	Introductory phrase			4	0.01	4	1
$t	Title statement of original			2	0.01	2	1
541 — Immediate Source of Acquisition Note				6,098	15.84	6,355	1	3	1.01	0.00
$ind1	Privacy			6,098	15.84	6,355	1	3	1.01	0.00
$#	number/occurrence of field (in KBR version)			6,098	15.84	6,098	1	3	1.01	0.00
$a	Source of acquisition			6,096	15.84	6,353	1	3	1.01	0.00
$b	Address			5,526	14.35	5,526	1
$c	Method of acquisition			6,081	15.80	6,081	1
$d	Date of acquisition			5,384	13.99	5,384	1	2	1.00	0.00
$f	Owner			1	0.00	1	1
$n	Extent			47	0.12	47	1
$o	Type of unit			1	0.00	1	1
545 — Biographical or Historical Data				2	0.01	2	1	2	1.09	0.02
$ind1	Type of data			2	0.01	2	1	2	1.09	0.02
$#	number/occurrence of field (in KBR version)			2	0.01	2	1	2	1.09	0.04
$a	Biographical or historical data			2	0.01	2	1	2	1.10	0.02
$b	Expansion			1	0.00	1	1
561 — Ownership and Custodial History				26	0.07	29	1	6	1.17	0.00
$ind1	Privacy			26	0.07	29	1	6	1.17	0.00
$#	number/occurrence of field (in KBR version)			26	0.07	29	1	6	1.16	0.00
$a	History			26	0.07	29	1	6	1.17	0.00
562 — Copy and Version Identification Note				12,728	33.06	13,588	1	12	1.13	0.00
$#	number/occurrence of field (in KBR version)			9,587	24.90	10,193	1	12	1.12	0.00
$a	Identifying markings			6,257	16.25	6,726	1	5	1.04	0.00
$b	Copy identification			6,515	16.92	6,873	1	12	1.15	0.00
$c	Version identification			755	1.96	755	1	2	1.00	0.00
563 — Binding Information				10	0.03	10	1	3	1.02	0.00
$#	number/occurrence of field (in KBR version)			10	0.03	10	1	3	1.06	0.00
$a	Binding note			10	0.03	10	1	3	1.02	0.00
583 — Action Note				5,199	13.51	5,290	1	3	1.02	0.00
$ind1	Privacy			5,199	13.51	5,290	1	3	1.02	0.00
$#	number/occurrence of field (in KBR version)			5,196	13.50	5,287	1	3	1.02	0.00
$x	Nonpublic note			2	0.01	2	1
$2	Source of term			5,197	13.50	5,288	1	3	1.02	0.00
$5	Institution to which field applies			5,196	13.50	5,287	1	3	1.02	0.00
6XX: Subject Access
600 — Subject Added Entry - Personal Name				2	0.01	3	1	125	1.70	0.02
$ind1	Type of personal name entry element			2	0.01	3	1	125	1.70	0.02
$ind2	Thesaurus			2	0.01	3	1	125	1.70	0.02
$#	number/occurrence of field (in KBR version)			2	0.01	3	1	114	1.49	0.02
$*	Link with identifier (in KBR version)			2	0.01	3	1	125	1.70	0.02
$a	Personal name			2	0.01	3	1	125	1.70	0.02
$c	Titles and other words associated with a name			1	0.00	1	1	117	1.60	0.04
$d	Dates associated with a name			2	0.01	2	1	57	1.44	0.01
$1	Real World Object URI			2	0.01	2	1	66	1.40	0.01
648 — Subject Added Entry - Chronological Term				5	0.01	5	1	6	1.31	0.00
$ind2	Thesaurus			5	0.01	5	1	6	1.31	0.00
$#	number/occurrence of field (in KBR version)			5	0.01	5	1	6	1.26	0.00
$*	Link with identifier (in KBR version)			5	0.01	5	1	6	1.31	0.00
$a	Chronological term			5	0.01	5	1	6	1.31	0.00
650 — Subject Added Entry - Topical Term				960	2.49	1,313	1	62	2.59	0.00
$ind1	Level of subject			960	2.49	1,313	1	62	2.59	0.00
$ind2	Thesaurus			960	2.49	1,313	1	62	2.59	0.00
$#	number/occurrence of field (in KBR version)			483	1.25	677	1	62	1.68	0.00
$*	Link with identifier (in KBR version)			960	2.49	1,319	1	62	2.61	0.00
$@	Language of field (in KBR version)			232	0.60	334	1	51	1.48	0.00
$a	Topical term or geographic name entry element			960	2.49	1,319	1	62	2.61	0.00
$b	Topical term following geographic name entry element			7	0.02	7	1	4	1.01	0.00
$c	Location of event			1	0.00	1	1	2	1.03	0.03
$d	Active dates			1	0.00	1	1
$g	Miscellaneous information			115	0.30	191	1	62	2.06	0.00
$v	Form subdivision			48	0.12	48	1	12	1.02	0.00
$x	General subdivision			131	0.34	260	1	16	1.44	0.01
$z	Geographic subdivision			10	0.03	13	1	10	1.76	0.01
$0	Authority record control number or standard number			228	0.59	262	1	33	2.27	0.00
$2	Source of heading or term			73	0.19	154	1	62	3.03	0.00
651 — Subject Added Entry - Geographic Name				12,008	31.19	14,429	1	17	1.10	0.00
$ind2	Thesaurus			12,008	31.19	14,429	1	17	1.10	0.00
$#	number/occurrence of field (in KBR version)			10,077	26.18	11,634	1	17	1.09	0.00
$*	Link with identifier (in KBR version)			12,008	31.19	14,429	1	17	1.10	0.00
$@	Language of field (in KBR version)			3,191	8.29	3,581	1	16	1.12	0.00
$a	Geographic name			12,008	31.19	14,429	1	17	1.10	0.00
$g	Miscellaneous information			282	0.73	465	1	9	1.55	0.03
$v	Form subdivision			4,597	11.94	10,534	1	12	2.44	0.00
$x	General subdivision			3,169	8.23	7,081	1	16	2.36	0.01
$z	Geographic subdivision			1	0.00	1	1	6	1.33	0.17
$0	Authority record control number or standard number			428	1.11	597	1	4	1.02	0.00
653 — Index Term - Uncontrolled				4	0.01	8	1	255	8.40	0.00
$ind1	Level of index term			4	0.01	8	1	255	8.40	0.00
$ind2	Type of term or name			4	0.01	8	1	255	8.40	0.00
$a	Uncontrolled term			4	0.01	8	1	255	8.40	0.00
654 — Subject Added Entry - Faceted Topical Terms				12,607	32.75	21,415	1	34	1.91	0.00
$ind1	Level of subject			12,607	32.75	21,415	1	34	1.91	0.00
$#	number/occurrence of field (in KBR version)			407	1.06	862	1	13	1.48	0.00
$*	Link with identifier (in KBR version)			12,607	32.75	22,371	1	66	2.15	0.00
$@	Language of field (in KBR version)			387	1.01	838	1	13	1.52	0.00
$a	Focus term			12,607	32.75	22,371	1	66	2.15	0.00
$b	Non-focus term			11,963	31.08	37,920	1	62	2.86	0.00
$v	Form subdivision			1	0.00	2	1	5	1.42	0.04
$2	Source of heading or term			12,605	32.74	21,412	1	34	1.92	0.00
655 — Index Term - Genre/Form				12,222	31.75	13,208	1	12	1.31	0.00
$ind1	Type of heading			12,222	31.75	13,208	1	12	1.31	0.00
$ind2	Thesaurus			12,222	31.75	13,208	1	12	1.31	0.00
$#	number/occurrence of field (in KBR version)			11,667	30.31	12,591	1	5	1.27	0.00
$*	Link with identifier (in KBR version)			12,222	31.75	13,208	1	12	1.31	0.00
$@	Language of field (in KBR version)			2,090	5.43	2,414	1	5	1.55	0.00
$a	Genre/form data or focus term			12,222	31.75	13,208	1	12	1.31	0.00
$0	Authority record control number			11,314	29.39	11,755	1	9	1.26	0.00
662 — Subject Added Entry - Hierarchical Place Name				1	0.00	1	1
$#	number/occurrence of field (in KBR version)			1	0.00	1	1
$*	Link with identifier (in KBR version)			1	0.00	1	1
$@	Language of field (in KBR version)			1	0.00	1	1
$a	Country or larger entity			1	0.00	1	1
70X-75X: Added Entry
700 — Added Entry - Personal Name				14,636	38.02	35,245	1	128	2.28	0.00
$ind1	Type of personal name entry element			14,636	38.02	35,245	1	128	2.28	0.00
$ind2	Type of added entry			14,636	38.02	35,245	1	128	2.28	0.00
$#	number/occurrence of field (in KBR version)			6,388	16.59	16,972	1	128	1.83	0.00
$*	Link with identifier (in KBR version)			14,636	38.02	35,246	1	128	2.28	0.00
$@	Language of field (in KBR version)			43	0.11	43	1	4	1.28	0.00
$a	Personal name			14,636	38.02	35,246	1	128	2.28	0.00
$b	Numeration			818	2.12	853	1	26	1.10	0.00
$c	Titles and other words associated with a name			4,373	11.36	5,502	1	90	1.59	0.00
$d	Dates associated with a name			11,002	28.58	22,393	1	125	1.76	0.00
$f	Date of a work			1	0.00	1	1	12	2.88	1.18
$g	Miscellaneous information			672	1.75	888	1	14	1.15	0.00
$j	Attribution qualifier			3	0.01	3	1	4	1.09	0.01
$n	Number of part/section of a work			1	0.00	1	1
$q	Fuller form of name			279	0.72	285	1	8	1.06	0.00
$0	Authority record control number or standard number			3	0.01	3	1	2	1.01	0.01
$1	Real World Object URI			8,978	23.32	14,877	1	121	1.93	0.00
$4	Relationship			13,427	34.88	28,720	1	128	2.34	0.00
710 — Added Entry - Corporate Name				24,358	63.27	29,516	1	28	1.14	0.00
$ind1	Type of corporate name entry element			24,358	63.27	29,516	1	28	1.14	0.00
$ind2	Type of added entry			24,358	63.27	29,516	1	28	1.14	0.00
$#	number/occurrence of field (in KBR version)			10,574	27.47	12,223	1	28	1.16	0.00
$*	Link with identifier (in KBR version)			24,358	63.27	29,516	1	28	1.14	0.00
$@	Language of field (in KBR version)			2,343	6.09	2,651	1	18	1.12	0.00
$a	Corporate name or jurisdiction name as entry element			24,358	63.27	29,516	1	28	1.14	0.00
$b	Subordinate unit			3,491	9.07	3,949	1	10	1.21	0.00
$c	Location of meeting			620	1.61	686	1	8	1.08	0.00
$d	Date of meeting or treaty signing			8,352	21.70	8,767	1	14	1.06	0.00
$f	Date of a work			2	0.01	2	1	2	1.50	0.12
$g	Miscellaneous information			9,645	25.05	11,152	1	27	1.10	0.00
$l	Language of a work			18	0.05	20	1	7	1.09	0.00
$1	Real World Object URI			3,253	8.45	3,257	1	4	1.01	0.00
$4	Relationship			23,957	62.23	27,347	1	28	1.14	0.00
720 — Added Entry - Uncontrolled Name				118	0.31	138	1	33	1.42	0.00
$ind1	Type of name			118	0.31	138	1	33	1.42	0.00
$#	number/occurrence of field (in KBR version)			118	0.31	138	1	33	1.45	0.00
$a	Name			118	0.31	138	1	33	1.42	0.00
$4	Relationship			118	0.31	138	1	33	1.45	0.00
730 — Added Entry - Uniform Title				45	0.12	92	1	11	1.32	0.01
$ind1	Nonfiling characters			45	0.12	92	1	11	1.32	0.01
$ind2	Type of added entry			45	0.12	92	1	11	1.32	0.01
$#	number/occurrence of field (in KBR version)			41	0.11	84	1	11	1.46	0.01
$*	Link with identifier (in KBR version)			45	0.12	92	1	11	1.32	0.01
$a	Uniform title			45	0.12	92	1	11	1.32	0.01
$l	Language of a work			2	0.01	2	1	11	1.89	0.03
$p	Name of part/section of a work			1	0.00	2	1	2	1.20	0.05
751 — Added Entry - Geographic Name				1	0.00	1	1	4	1.10	0.00
$#	number/occurrence of field (in KBR version)			1	0.00	1	1	4	1.10	0.00
$*	Link with identifier (in KBR version)			1	0.00	1	1	4	1.10	0.00
$a	Geographic name			1	0.00	1	1	4	1.10	0.00
76X-78X: Linking Entry
765 — Original Language Entry				4	0.01	4	1	10	1.03	0.00
$ind1	Note controller			4	0.01	4	1	10	1.03	0.00
$ind2	Display constant controller			4	0.01	4	1	10	1.03	0.00
$#	number/occurrence of field (in KBR version)			2	0.01	2	1	10	1.04	0.00
$*	Link with identifier (in KBR version)			4	0.01	4	1	10	1.03	0.00
$t	Title			4	0.01	4	1	10	1.03	0.00
$z	International Standard Book Number			2	0.01	2	1	10	1.03	0.00
767 — Translation Entry				8	0.02	9	1	18	1.29	0.01
$ind1	Note controller			8	0.02	9	1	18	1.29	0.01
$ind2	Display constant controller			8	0.02	9	1	18	1.29	0.01
$#	number/occurrence of field (in KBR version)			6	0.02	7	1	18	1.34	0.01
$*	Link with identifier (in KBR version)			8	0.02	9	1	18	1.29	0.01
$a	Main entry heading			3	0.01	3	1	17	1.30	0.01
$t	Title			8	0.02	9	1	18	1.29	0.01
$z	International Standard Book Number			1	0.00	2	1	14	1.28	0.01
770 — Supplement/Special Issue Entry				5	0.01	5	1	10	1.33	0.03
$ind1	Note controller			5	0.01	5	1	10	1.33	0.03
$ind2	Display constant controller			5	0.01	5	1	10	1.33	0.03
$#	number/occurrence of field (in KBR version)			4	0.01	4	1	10	1.37	0.08
$*	Link with identifier (in KBR version)			5	0.01	5	1	10	1.33	0.03
$g	Related parts			1	0.00	1	1	2	1.04	0.04
$t	Title			5	0.01	5	1	10	1.33	0.03
772 — Supplement Parent Entry				17	0.04	17	1	9	1.03	0.01
$ind1	Note controller			17	0.04	17	1	9	1.03	0.01
$ind2	Display constant controller			17	0.04	17	1	9	1.03	0.01
$#	number/occurrence of field (in KBR version)			13	0.03	13	1	2	1.01	0.00
$*	Link with identifier (in KBR version)			17	0.04	17	1	9	1.03	0.01
$a	Main entry heading			3	0.01	3	1
$g	Related parts			6	0.02	6	1	2	1.70	0.00
$t	Title			17	0.04	17	1	9	1.03	0.01
$z	International Standard Book Number			1	0.00	1	1
773 — Host Item Entry				27,513	71.47	27,819	1	6	1.05	0.00
$ind1	Note controller			27,513	71.47	27,819	1	6	1.05	0.00
$ind2	Display constant controller			27,513	71.47	27,819	1	6	1.05	0.00
$#	number/occurrence of field (in KBR version)			23,077	59.95	23,177	1	6	1.06	0.00
$*	Link with identifier (in KBR version)			27,513	71.47	27,819	1	6	1.05	0.00
$a	Main entry heading			4,387	11.40	4,387	1	5	1.01	0.00
$b	Edition			2,530	6.57	2,562	1	3	1.03	0.00
$g	Related parts			27,168	70.57	27,451	1	6	1.04	0.00
$h	Physical description			13,379	34.75	13,408	1	2	1.00	0.00
$n	Note			6,474	16.82	6,726	1	4	1.01	0.00
$r	Report number			1	0.00	1	1
$t	Title			27,513	71.47	27,819	1	6	1.05	0.00
$z	International Standard Book Number			75	0.19	75	1	6	1.01	0.00
775 — Other Edition Entry				235	0.61	574	1	25	1.98	0.00
$ind1	Note controller			235	0.61	574	1	25	1.98	0.00
$ind2	Display constant controller			235	0.61	574	1	25	1.98	0.00
$#	number/occurrence of field (in KBR version)			180	0.47	466	1	25	2.22	0.00
$*	Link with identifier (in KBR version)			235	0.61	574	1	25	1.98	0.00
$a	Main entry heading			152	0.39	331	1	22	2.06	0.00
$i	Relationship information			41	0.11	70	1	23	1.98	0.00
$t	Title			235	0.61	574	1	25	1.98	0.00
$z	International Standard Book Number			137	0.36	285	1	25	2.17	0.00
776 — Additional Physical Form Entry				2	0.01	2	1	12	1.04	0.00
$ind1	Note controller			2	0.01	2	1	12	1.04	0.00
$ind2	Display constant controller			2	0.01	2	1	12	1.04	0.00
$*	Link with identifier (in KBR version)			2	0.01	2	1	12	1.04	0.00
$a	Main entry heading			2	0.01	2	1	8	1.03	0.00
$t	Title			2	0.01	2	1	12	1.04	0.00
$z	International Standard Book Number			2	0.01	2	1	12	1.04	0.00
777 — Issued With Entry				39	0.10	39	1	10	1.70	0.01
$ind1	Note controller			39	0.10	39	1	10	1.70	0.01
$ind2	Display constant controller			39	0.10	39	1	10	1.70	0.01
$#	number/occurrence of field (in KBR version)			23	0.06	23	1	10	1.76	0.01
$*	Link with identifier (in KBR version)			39	0.10	39	1	10	1.70	0.01
$a	Main entry heading			17	0.04	17	1	10	1.85	0.02
$t	Title			39	0.10	39	1	10	1.70	0.01
780 — Preceding Entry				1	0.00	1	1	9	1.06	0.00
$ind1	Note controller			1	0.00	1	1	9	1.06	0.00
$ind2	Type of relationship			1	0.00	1	1	9	1.06	0.00
$*	Link with identifier (in KBR version)			1	0.00	1	1	9	1.06	0.00
$a	Main entry heading			1	0.00	1	1	2	1.04	0.00
$t	Title			1	0.00	1	1	9	1.06	0.00
785 — Succeeding Entry				1	0.00	1	1	15	1.06	0.00
$ind1	Note controller			1	0.00	1	1	15	1.06	0.00
$ind2	Type of relationship			1	0.00	1	1	15	1.06	0.00
$*	Link with identifier (in KBR version)			1	0.00	1	1	15	1.06	0.00
$a	Main entry heading			1	0.00	1	1	2	1.04	0.01
$t	Title			1	0.00	1	1	15	1.06	0.00
786 — Data Source Entry				4	0.01	4	1	7	1.41	0.00
$ind1	Note controller			4	0.01	4	1	7	1.41	0.00
$ind2	Display constant controller			4	0.01	4	1	7	1.41	0.00
$#	number/occurrence of field (in KBR version)			2	0.01	2	1	7	1.41	0.00
$*	Link with identifier (in KBR version)			4	0.01	4	1	7	1.41	0.00
$a	Main entry heading			3	0.01	3	1	4	1.25	0.00
$g	Related parts			2	0.01	2	1	7	1.51	0.00
$t	Title			4	0.01	4	1	7	1.41	0.00
$z	International Standard Book Number			1	0.00	1	1	4	1.21	0.00
787 — Other Relationship Entry				68	0.18	154	1	15	1.08	0.00
$ind1	Note controller			68	0.18	154	1	15	1.08	0.00
$ind2	Display constant controller			68	0.18	154	1	15	1.08	0.00
$#	number/occurrence of field (in KBR version)			19	0.05	24	1	15	1.10	0.00
$*	Link with identifier (in KBR version)			68	0.18	154	1	15	1.09	0.00
$a	Main entry heading			16	0.04	16	1	11	1.31	0.01
$g	Related parts			9	0.02	9	1	15	1.03	0.00
$i	Relationship information			11	0.03	13	1	4	1.03	0.00
$t	Title			68	0.18	154	1	15	1.09	0.00
$z	International Standard Book Number			1	0.00	1	1	12	1.19	0.01
80X-83X: Series Added Entry
800 — Series Added Entry - Personal Name				7	0.02	7	1	2	1.00	0.00
$ind1	Type of personal name entry element			7	0.02	7	1	2	1.00	0.00
$#	number/occurrence of field (in KBR version)			2	0.01	2	1
$*	Link with identifier (in KBR version)			7	0.02	7	1	2	1.00	0.00
$a	Personal name			7	0.02	7	1	2	1.00	0.00
830 — Series Added Entry - Uniform Title				1	0.00	1	1	20	2.16	0.14
$ind2	Nonfiling characters			1	0.00	1	1	20	2.16	0.14
$#	number/occurrence of field (in KBR version)			1	0.00	1	1	20	2.20	0.14
$*	Link with identifier (in KBR version)			1	0.00	1	1	20	2.16	0.14
$a	Uniform title			1	0.00	1	1	20	2.16	0.14
841-88X: Holdings, Location, Alternate Graphics
856 — Electronic Location and Access				10,508	27.30	12,782	1	51	1.08	0.00
$ind1	Access method			10,508	27.30	12,782	1	51	1.08	0.00
$ind2	Relationship			10,508	27.30	12,782	1	51	1.08	0.00
$#	number/occurrence of field (in KBR version)			3,645	9.47	3,989	1	45	1.07	0.00
$a	Host name			6	0.02	6	1	2	1.08	0.07
$u	Uniform Resource Identifier			10,504	27.29	12,776	1	51	1.08	0.00
$y	Link text			16	0.04	27	1	51	2.04	0.03
$z	Public note			275	0.71	275	1	10	1.01	0.00
$7	Access status			10,411	27.04	12,679	1	51	1.10	0.00
880 — Alternate Graphic Representation				1	0.00	1	1	6	1.10	0.00
$#	number/occurrence of field (in KBR version)			1	0.00	1	1	6	1.10	0.00
$a	Same as associated field			1	0.00	1	1	6	1.10	0.00
$6	Linkage			1	0.00	1	1	6	1.10	0.00
Holdings: MARC Holdings tags
866 — Textual Holdings-Basic Bibliographic Unit				4	0.01	4	1	7	1.47	0.00
$ind1	Field encoding level			4	0.01	4	1	7	1.47	0.00
$ind2	Type of notation			4	0.01	4	1	7	1.47	0.00
$#	number/occurrence of field (in KBR version)			3	0.01	3	1	7	1.33	0.00
$a	Textual holdings			4	0.01	4	1	7	1.47	0.00
OCLCMARC tags
911 — Manifestation identifier				8,095	21.03	8,095	1	4	1.00	0.00
$ind1				26	0.07	26	1	2	1.00	0.00
$#				2,744	7.13	2,744	1	4	1.00	0.00
$a				8,095	21.03	8,291	1	8	1.04	0.00
Locally defined tags of the Royal Library of Belgium
997 — Item information				38,366	99.66	42,369	1	254	1.14	0.00
$#	number/occurrence of field			3,058	7.94	3,324	1	16	1.28	0.00
$*	Link with identifier			38,366	99.66	42,369	1	254	1.14	0.00
$a	Barcode number			38,366	99.66	42,369	1	254	1.14	0.00
$c	Library (holding institution)			38,366	99.66	42,369	1	254	1.14	0.00
$d	Section (department of holding institution)			38,366	99.66	42,370	1	254	1.14	0.00
$g	Call Number			37,987	98.68	41,957	1	254	1.14	0.00
$h	Rating2			1	0.00	1	1	2	1.02	0.00
$t	Document type			38,366	99.66	42,369	1	254	1.14	0.00
$v	inventory number			8,851	22.99	9,217	1	20	1.08	0.00
unknown origin
867				2	0.01	2	1	3	1.12	0.04
$#				2	0.01	2	1	3	1.12	0.04
$a				1	0.00	1	1	3	1.12	0.04
$x				1	0.00	1	1	3	1.06	0.06
877				1	0.00	1	1
$#				1	0.00	1	1
$l				1	0.00	1	1