QA catalogue for analysing library data

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

number of records: 35,415

Fields		fields	pos./subf.		count	%
Fields defined in MARC21
00X	Control Fields	2	39		35,415	100.00
01X-09X	Numbers and Code	16	68		35,384	99.91
1XX	Main Entry	3	29		26,938	76.06
20X-24X	Title	6	42		35,413	99.99
25X-28X	Edition, Imprint	6	25		35,342	99.79
3XX	Physical Description	8	36		35,131	99.20
4XX	Series Statement	1	4		39	0.11
5XX	Note	18	71		26,304	74.27
6XX	Subject Access	8	59		27,780	78.44
70X-75X	Added Entry	5	45		29,584	83.54
76X-78X	Linking Entry	12	86		24,916	70.35
80X-83X	Series Added Entry	2	8		8	0.02
841-88X	Holdings, Location, Alternate Graphics	2	11		10,174	28.73
Holdings	MARC Holdings tags	1	4		3	0.01
Fields defined in extensions of MARC
OCLC	OCLCMARC tags	1	3		7,663	21.64
KBR	Locally defined tags of the Royal Library of Belgium	1	9		35,292	99.65
unknown	unknown origin	2	5		2	0.01
Total number of data elements		94	544

				records		occurences
				count	%	count	min	max	⌀	σ
00X: Control Fields
Leader
00	Record length			35,415	100.00	35,415	1
05	Record status			35,415	100.00	35,415	1
06	Type of record			35,415	100.00	35,415	1
07	Bibliographic level			35,415	100.00	35,415	1
08	Type of control			35,415	100.00	35,415	1
09	Character coding scheme			35,415	100.00	35,415	1
10	Indicator count			35,415	100.00	35,415	1
11	Subfield code count			35,415	100.00	35,415	1
12	Base address of data			35,415	100.00	35,415	1
17	Encoding level			35,415	100.00	35,415	1
18	Descriptive cataloging form			35,415	100.00	35,415	1
19	Multipart resource record level			35,415	100.00	35,415	1
20	Length of the length-of-field portion			35,415	100.00	35,415	1
21	Length of the starting-character-position portion			35,415	100.00	35,415	1
22	Length of the implementation-defined portion			35,415	100.00	35,415	1
23	Undefined			35,415	100.00	35,415	1
001 — Control Number				35,415	100.00	35,415	1
005 — Date and Time of Latest Transaction				4	0.01	4	1
007 — Physical Description
Common
00	Category of material			3,620	10.22	3,620	1	2	1.05	0.00
Map
01	Specific material designation			3,615	10.21	3,615	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			32,956	93.06	32,956	1
06	Type of date/Publication status			32,956	93.06	32,956	1
07	Date 1			32,956	93.06	32,956	1
11	Date 2			32,956	93.06	32,956	1
15	Place of publication, production, or execution			32,956	93.06	32,956	1
35	Language			32,719	92.39	32,719	1
38	Modified record			32,717	92.38	32,717	1
39	Cataloging source			32,717	92.38	32,717	1
Maps
18	Relief			32,956	93.06	32,956	1
22	Projection			32,956	93.06	32,956	1
25	Type of cartographic material			32,719	92.39	32,719	1
28	Government publication			32,719	92.39	32,719	1
29	Form of item			32,719	92.39	32,719	1
31	Index			32,719	92.39	32,719	1
33	Special format characteristics			32,719	92.39	32,719	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				2,329	6.58	2,349	1	254	1.02	0.00
$ind2	Display constant controller			2,329	6.58	2,349	1	254	1.02	0.00
$#	number/occurrence of field (in KBR version)			1,172	3.31	1,177	1	45	1.01	0.00
$a	Copyright or legal deposit number			1,767	4.99	1,787	1	254	1.02	0.00
$b	Assigning agency			226	0.64	226	1	16	1.00	0.00
$z	Canceled/invalid copyright or legal deposit number			557	1.57	557	1	4	1.01	0.00
020 — International Standard Book Number				2,459	6.94	2,474	1	200	1.04	0.00
$#	number/occurrence of field (in KBR version)			1,133	3.20	1,140	1	84	1.03	0.00
$a	International Standard Book Number			1,206	3.41	1,220	1	100	1.04	0.00
$c	Terms of availability			1,778	5.02	1,779	1	63	1.01	0.00
$q	Qualifying information			435	1.23	435	1	84	1.10	0.00
$z	Canceled/invalid ISBN			14	0.04	14	1	100	1.13	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				62	0.18	62	1	11	1.01	0.00
$ind1	Type of standard number or code			62	0.18	62	1	11	1.01	0.00
$ind2	Difference indicator			62	0.18	62	1	11	1.01	0.00
$#	number/occurrence of field (in KBR version)			49	0.14	49	1	4	1.01	0.00
$a	Standard number or code			62	0.18	62	1	11	1.00	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				5,300	14.97	5,314	1	3	1.00	0.00
$ind1	Type of scale			5,300	14.97	5,314	1	3	1.00	0.00
$ind2	Type of ring			5,300	14.97	5,314	1	3	1.00	0.00
$#	number/occurrence of field (in KBR version)			5,173	14.61	5,183	1	2	1.00	0.00
$a	Category of scale			5,269	14.88	5,283	1	3	1.00	0.00
$b	Constant ratio linear horizontal scale			173	0.49	177	1	3	1.01	0.01
$d	Coordinates - westernmost longitude			294	0.83	302	1	3	1.03	0.01
$e	Coordinates - easternmost longitude			230	0.65	238	1	3	1.03	0.01
$f	Coordinates - northernmost latitude			230	0.65	238	1	3	1.03	0.01
$g	Coordinates - southernmost latitude			230	0.65	238	1	3	1.03	0.01
$1	Real World Object URI			16	0.05	16	1
$2	Source			16	0.05	16	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				35,382	99.91	35,390	1	4	1.00	0.00
$#	number/occurrence of field (in KBR version)			21,778	61.49	21,786	1	4	1.00	0.00
$a	Original cataloging agency			35,382	99.91	35,390	1	4	1.00	0.00
$b	Language of cataloging			13,052	36.85	13,052	1	4	1.00	0.00
$c	Transcribing agency			7	0.02	7	1
$d	Modifying agency			8	0.02	13	1	30	1.24	0.01
$e	Description conventions			12,469	35.21	12,469	1	4	1.00	0.00
041 — Language Code				34,752	98.13	34,767	1	5	1.00	0.00
$ind1	Translation indication			34,752	98.13	34,767	1	5	1.00	0.00
$ind2	Source of code			34,752	98.13	34,767	1	5	1.00	0.00
$#	number/occurrence of field (in KBR version)			20,869	58.93	20,884	1	5	1.00	0.00
$a	Language code of text/sound track or separate title			34,752	98.13	36,041	1	16	1.03	0.00
$h	Language code of original			17	0.05	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	1.12	0.00
044 — Country of Publishing/Producing Entity Code				34,736	98.08	34,738	1	4	1.00	0.00
$#	number/occurrence of field (in KBR version)			20,983	59.25	20,985	1	4	1.00	0.00
$a	MARC country code			34,736	98.08	37,567	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	2	1.03	0.00
$ind1	Type of edition			5	0.01	5	1	2	1.03	0.00
$ind2	Source of classification number			5	0.01	5	1	2	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	2	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				12,185	34.41	12,190	1	4	1.00	0.00
$ind1	Type of personal name entry element			12,185	34.41	12,190	1	4	1.00	0.00
$#	number/occurrence of field (in KBR version)			5,224	14.75	5,229	1	4	1.00	0.00
$*	Link with identifier (in KBR version)			12,185	34.41	12,190	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			12,185	34.41	12,190	1	4	1.00	0.00
$b	Numeration			269	0.76	269	1	2	1.00	0.00
$c	Titles and words associated with a name			2,361	6.67	2,386	1	9	1.03	0.00
$d	Dates associated with a name			10,652	30.08	10,658	1	4	1.00	0.00
$g	Miscellaneous information			99	0.28	101	1	2	1.00	0.00
$j	Attribution qualifier			1	0.00	1	1
$q	Fuller form of name			324	0.91	325	1	3	1.00	0.00
$1	Real World Object URI			7,283	20.56	7,284	1	4	1.00	0.00
$4	Relationship			5,514	15.57	5,884	1	6	1.05	0.00
110 — Main Entry - Corporate Name				15,138	42.74	15,383	1	3	1.00	0.00
$ind1	Type of corporate name entry element			15,138	42.74	15,383	1	3	1.00	0.00
$#	number/occurrence of field (in KBR version)			5,340	15.08	5,517	1	3	1.01	0.00
$*	Link with identifier (in KBR version)			15,138	42.74	15,383	1	3	1.00	0.00
$@	Language of field (in KBR version)			1,031	2.91	1,195	1	3	1.04	0.00
$a	Corporate name or jurisdiction name as entry element			15,137	42.74	15,382	1	3	1.00	0.00
$b	Subordinate unit			943	2.66	1,113	1	5	1.21	0.00
$c	Location of meeting			335	0.95	335	1	3	1.03	0.00
$d	Date of meeting or treaty signing			4,635	13.09	4,635	1
$g	Miscellaneous information			9,727	27.47	9,740	1	3	1.00	0.00
$l	Language of a work			15	0.04	15	1
$1	Real World Object URI			186	0.53	186	1	2	1.00	0.00
$4	Relationship			8,237	23.26	15,424	1	6	1.21	0.00
130 — Main Entry - Uniform Title				131	0.37	131	1
$ind1	Nonfiling characters			131	0.37	131	1
$#	number/occurrence of field (in KBR version)			131	0.37	131	1
$*	Link with identifier (in KBR version)			131	0.37	131	1
$a	Uniform title			131	0.37	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				1,068	3.02	1,068	1
$ind1	Uniform title printed or displayed			1,068	3.02	1,068	1
$ind2	Nonfiling characters			1,068	3.02	1,068	1
$#	number/occurrence of field (in KBR version)			309	0.87	309	1
$*	Link with identifier (in KBR version)			1,068	3.02	1,068	1
$a	Uniform title			1,068	3.02	1,068	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	0.08	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				35,413	99.99	35,415	1	4	1.01	0.00
$ind1	Title added entry			35,413	99.99	35,415	1	4	1.01	0.00
$ind2	Nonfiling characters			35,413	99.99	35,415	1	4	1.01	0.00
$#	number/occurrence of field (in KBR version)			23,246	65.64	23,248	1	4	1.02	0.00
$a	Title			35,413	99.99	35,415	1	9	1.01	0.00
$b	Remainder of title			12,271	34.65	12,271	1	10	1.00	0.00
$c	Statement of responsibility, etc.			20,508	57.91	20,510	1	4	1.00	0.00
$h	Medium			25,373	71.64	25,375	1	3	1.01	0.00
$n	Number of part/section of a work			316	0.89	339	1	25	1.11	0.00
$p	Name of part/section of a work			116	0.33	135	1	48	1.12	0.00
$6	Linkage			1	0.00	1	1
246 — Varying Form of Title				2,229	6.29	2,906	1	24	1.21	0.00
$ind1	Note/added entry controller			2,229	6.29	2,906	1	24	1.21	0.00
$ind2	Type of title			2,229	6.29	2,906	1	24	1.21	0.00
$#	number/occurrence of field (in KBR version)			911	2.57	1,128	1	24	1.33	0.00
$@	Language of field (in KBR version)			35	0.10	35	1	5	1.92	0.00
$a	Title proper/short title			2,217	6.26	2,894	1	24	1.21	0.00
$b	Remainder of title			584	1.65	739	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	0.04	14	1	8	1.06	0.00
$h	Medium			7	0.02	8	1	5	1.82	0.15
$i	Display text			24	0.07	25	1	10	1.03	0.00
$n	Number of part/section of a work			2	0.01	7	1	9	1.10	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				4,099	11.57	4,403	1	4	1.01	0.00
$#	number/occurrence of field (in KBR version)			3,138	8.86	3,441	1	4	1.02	0.00
$@	Language of field (in KBR version)			150	0.42	310	1	3	2.02	0.00
$a	Edition statement			4,099	11.57	4,403	1	4	1.01	0.00
$b	Remainder of edition statement			183	0.52	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				27,490	77.62	27,587	1	5	1.00	0.00
$#	number/occurrence of field (in KBR version)			16,175	45.67	16,213	1	4	1.00	0.00
$a	Statement of scale			26,919	76.01	27,001	1	5	1.00	0.00
$b	Statement of projection			887	2.50	887	1
$c	Statement of coordinates			3,358	9.48	3,380	1	4	1.01	0.00
$f	Outer G-ring coordinate pairs			16	0.05	16	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				35,148	99.25	41,436	1	33	1.05	0.00
$ind1	Sequence of statements			35,148	99.25	41,436	1	33	1.05	0.00
$ind2	Function of entity			35,148	99.25	41,436	1	33	1.05	0.00
$#	number/occurrence of field (in KBR version)			21,706	61.29	24,632	1	30	1.05	0.00
$@	Language of field (in KBR version)			1,854	5.24	1,860	1	3	1.01	0.00
$a	Place of production, publication, distribution, manufacture			32,756	92.49	35,831	1	22	1.12	0.00
$b	Name of producer, publisher, distributor, manufacturer			32,691	92.31	36,325	1	28	1.07	0.00
$c	Date of production, publication, distribution, manufacture, or copyright notice			35,027	98.90	40,901	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				34,959	98.71	35,008	1	10	1.03	0.00
$#	number/occurrence of field (in KBR version)			21,471	60.63	21,505	1	10	1.05	0.00
$a	Extent			34,434	97.23	34,443	1	10	1.01	0.00
$b	Other physical details			24,506	69.20	24,538	1	10	1.01	0.00
$c	Dimensions			33,412	94.34	33,423	1	4	1.00	0.00
$e	Accompanying material			999	2.82	999	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				18,931	53.45	18,932	1	3	1.01	0.00
$#	number/occurrence of field (in KBR version)			7,113	20.08	7,114	1	3	1.01	0.00
$a	Content type term			18,931	53.45	21,278	1	6	1.23	0.00
$b	Content type code			16	0.05	16	1	3	1.07	0.01
$2	Source			18,870	53.28	18,871	1	3	1.00	0.00
337 — Media Type				18,931	53.45	18,931	1	2	1.00	0.00
$#	number/occurrence of field (in KBR version)			7,113	20.08	7,113	1	2	1.00	0.00
$a	Media type term			18,931	53.45	18,931	1	2	1.00	0.00
$b	Media type code			16	0.05	16	1
$2	Source			18,870	53.28	18,870	1	2	1.00	0.00
338 — Carrier Type				18,939	53.48	18,939	1	2	1.00	0.00
$#	number/occurrence of field (in KBR version)			7,121	20.11	7,121	1	2	1.00	0.00
$a	Carrier type term			18,882	53.32	18,882	1	2	1.00	0.00
$b	Carrier type code			1	0.00	1	1	2	1.00	0.00
$2	Source			18,884	53.32	18,884	1	2	1.00	0.00
340 — Physical Medium				29	0.08	29	1	8	1.00	0.00
$#	number/occurrence of field (in KBR version)			28	0.08	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				15	0.04	15	1
$ind1	Geospatial reference dimension			15	0.04	15	1
$ind2	Geospatial reference method			15	0.04	15	1
$#	number/occurrence of field (in KBR version)			15	0.04	15	1
$a	Name			15	0.04	15	1
$b	Coordinate units or distance units			15	0.04	15	1
$c	Latitude resolution			15	0.04	15	1
$d	Longitude resolution			15	0.04	15	1
$q	Ellipsoid name			15	0.04	15	1
$r	Semi-major axis			15	0.04	15	1
$s	Denominator of flattening ratio			15	0.04	15	1
362 — Dates of Publication and/or Sequential Designation				5	0.01	5	1	3	1.00	0.00
$ind1	Format of date			5	0.01	5	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			5	0.01	5	1	4	1.00	0.00
4XX: Series Statement
490 — Series Statement				39	0.11	39	1	5	1.01	0.00
$ind1	Series tracing policy			39	0.11	39	1	5	1.01	0.00
$#	number/occurrence of field (in KBR version)			22	0.06	22	1	3	1.02	0.00
$a	Series statement			39	0.11	42	1	5	1.02	0.00
$v	Volume/sequential designation			30	0.08	31	1	8	1.45	0.00
5XX: Note
500 — General Note				16,728	47.23	21,023	1	76	1.34	0.00
$#	number/occurrence of field (in KBR version)			12,063	34.06	15,201	1	76	1.24	0.00
$@	Language of field (in KBR version)			1	0.00	1	1	3	1.10	0.00
$a	General note			16,728	47.23	21,022	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	0.06	21	1
$a	With note			22	0.06	22	1	2	1.01	0.01
504 — Bibliography, etc. Note				10	0.03	10	1	7	1.03	0.00
$#	number/occurrence of field (in KBR version)			10	0.03	10	1	7	1.04	0.00
$a	Bibliography, etc. note			10	0.03	10	1	7	1.03	0.00
505 — Formatted Contents Note				1,843	5.20	1,953	1	214	3.19	0.02
$ind1	Display constant controller			1,843	5.20	1,953	1	214	3.19	0.02
$ind2	Level of content designation			1,843	5.20	1,953	1	214	3.19	0.02
$#	number/occurrence of field (in KBR version)			764	2.16	812	1	214	2.78	0.06
$a	Formatted contents note			383	1.08	435	1	35	1.90	0.02
$g	Miscellaneous information			1	0.00	1	1	291	29.70	1.55
$r	Statement of responsibility			3	0.01	3	1	84	4.69	0.06
$t	Title			1,465	4.14	1,580	1	214	4.73	0.03
510 — Citation/References Note				3,263	9.21	3,544	1	10	1.14	0.00
$ind1	Coverage/location in source			3,263	9.21	3,544	1	10	1.14	0.00
$#	number/occurrence of field (in KBR version)			997	2.82	1,099	1	10	1.26	0.00
$a	Name of source			3,263	9.21	3,544	1	10	1.14	0.00
$b	Coverage of source			1	0.00	1	1
$c	Location within source			6	0.02	7	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	0.03	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	0.01
$#	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	0.01
520 — Summary, etc.				27	0.08	27	1	7	1.02	0.00
$ind1	Display constant controller			27	0.08	27	1	7	1.02	0.00
$#	number/occurrence of field (in KBR version)			27	0.08	27	1	6	1.00	0.00
$a	Summary, etc.			27	0.08	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	0.06	21	1	4	1.01	0.00
$a	Additional physical form available note			21	0.06	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				5,937	16.76	6,194	1	3	1.01	0.00
$ind1	Privacy			5,937	16.76	6,194	1	3	1.01	0.00
$#	number/occurrence of field (in KBR version)			5,937	16.76	5,937	1	3	1.02	0.00
$a	Source of acquisition			5,935	16.76	6,192	1	3	1.01	0.00
$b	Address			5,366	15.15	5,366	1
$c	Method of acquisition			5,920	16.72	5,920	1
$d	Date of acquisition			5,223	14.75	5,223	1	2	1.00	0.00
$f	Owner			1	0.00	1	1
$n	Extent			47	0.13	47	1
$o	Type of unit			1	0.00	1	1
545 — Biographical or Historical Data				2	0.01	2	1	2	1.10	0.02
$ind1	Type of data			2	0.01	2	1	2	1.10	0.02
$#	number/occurrence of field (in KBR version)			2	0.01	2	1	2	1.10	0.05
$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	5	1.15	0.00
$ind1	Privacy			26	0.07	29	1	5	1.15	0.00
$#	number/occurrence of field (in KBR version)			26	0.07	29	1	5	1.13	0.00
$a	History			26	0.07	29	1	5	1.15	0.00
562 — Copy and Version Identification Note				12,411	35.04	13,265	1	12	1.14	0.00
$#	number/occurrence of field (in KBR version)			9,422	26.60	10,023	1	12	1.12	0.00
$a	Identifying markings			6,232	17.60	6,699	1	5	1.05	0.00
$b	Copy identification			6,223	17.57	6,577	1	12	1.15	0.00
$c	Version identification			755	2.13	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				4,974	14.04	5,065	1	3	1.02	0.00
$ind1	Privacy			4,974	14.04	5,065	1	3	1.02	0.00
$#	number/occurrence of field (in KBR version)			4,971	14.04	5,062	1	3	1.02	0.00
$x	Nonpublic note			2	0.01	2	1
$2	Source of term			4,972	14.04	5,063	1	3	1.02	0.00
$5	Institution to which field applies			4,971	14.04	5,062	1	3	1.02	0.00
6XX: Subject Access
600 — Subject Added Entry - Personal Name				2	0.01	3	1	125	1.71	0.03
$ind1	Type of personal name entry element			2	0.01	3	1	125	1.71	0.03
$ind2	Thesaurus			2	0.01	3	1	125	1.71	0.03
$#	number/occurrence of field (in KBR version)			2	0.01	3	1	114	1.47	0.03
$*	Link with identifier (in KBR version)			2	0.01	3	1	125	1.71	0.03
$a	Personal name			2	0.01	3	1	125	1.71	0.03
$c	Titles and other words associated with a name			1	0.00	1	1	117	1.63	0.04
$d	Dates associated with a name			2	0.01	2	1	57	1.42	0.01
$1	Real World Object URI			2	0.01	2	1	66	1.38	0.01
648 — Subject Added Entry - Chronological Term				5	0.01	5	1	6	1.32	0.00
$ind2	Thesaurus			5	0.01	5	1	6	1.32	0.00
$#	number/occurrence of field (in KBR version)			5	0.01	5	1	6	1.27	0.00
$*	Link with identifier (in KBR version)			5	0.01	5	1	6	1.32	0.00
$a	Chronological term			5	0.01	5	1	6	1.32	0.00
650 — Subject Added Entry - Topical Term				894	2.52	1,204	1	81	2.64	0.00
$ind1	Level of subject			894	2.52	1,204	1	81	2.64	0.00
$ind2	Thesaurus			894	2.52	1,204	1	81	2.64	0.00
$#	number/occurrence of field (in KBR version)			440	1.24	623	1	81	1.70	0.00
$*	Link with identifier (in KBR version)			894	2.52	1,210	1	81	2.65	0.00
$@	Language of field (in KBR version)			163	0.46	259	1	51	1.50	0.00
$a	Topical term or geographic name entry element			894	2.52	1,210	1	81	2.65	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			96	0.27	157	1	81	2.22	0.00
$v	Form subdivision			48	0.14	48	1	12	1.02	0.00
$x	General subdivision			129	0.36	256	1	16	1.47	0.01
$z	Geographic subdivision			10	0.03	13	1	10	1.78	0.01
$0	Authority record control number or standard number			196	0.55	215	1	27	2.12	0.00
$2	Source of heading or term			54	0.15	114	1	81	3.09	0.00
651 — Subject Added Entry - Geographic Name				9,572	27.03	11,836	1	16	1.10	0.00
$ind2	Thesaurus			9,572	27.03	11,836	1	16	1.10	0.00
$#	number/occurrence of field (in KBR version)			7,641	21.58	9,041	1	16	1.09	0.00
$*	Link with identifier (in KBR version)			9,572	27.03	11,836	1	16	1.10	0.00
$@	Language of field (in KBR version)			2,914	8.23	3,170	1	6	1.09	0.00
$a	Geographic name			9,572	27.03	11,836	1	16	1.10	0.00
$g	Miscellaneous information			203	0.57	322	1	9	1.48	0.04
$v	Form subdivision			4,599	12.99	10,619	1	12	2.46	0.00
$x	General subdivision			3,212	9.07	7,203	1	16	2.38	0.01
$z	Geographic subdivision			1	0.00	1	1	6	1.34	0.17
$0	Authority record control number or standard number			346	0.98	444	1	4	1.02	0.00
653 — Index Term - Uncontrolled				4	0.01	8	1	255	8.47	0.00
$ind1	Level of index term			4	0.01	8	1	255	8.47	0.00
$ind2	Type of term or name			4	0.01	8	1	255	8.47	0.00
$a	Uncontrolled term			4	0.01	8	1	255	8.47	0.00
654 — Subject Added Entry - Faceted Topical Terms				12,114	34.21	20,373	1	34	1.91	0.00
$ind1	Level of subject			12,114	34.21	20,373	1	34	1.91	0.00
$#	number/occurrence of field (in KBR version)			200	0.56	314	1	13	1.42	0.00
$*	Link with identifier (in KBR version)			12,114	34.21	21,287	1	66	2.15	0.00
$@	Language of field (in KBR version)			179	0.51	289	1	13	1.41	0.00
$a	Focus term			12,114	34.21	21,287	1	66	2.15	0.00
$b	Non-focus term			11,479	32.41	36,065	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			12,112	34.20	20,370	1	34	1.91	0.00
655 — Index Term - Genre/Form				9,870	27.87	10,705	1	12	1.30	0.00
$ind1	Type of heading			9,870	27.87	10,705	1	12	1.30	0.00
$ind2	Thesaurus			9,870	27.87	10,705	1	12	1.30	0.00
$#	number/occurrence of field (in KBR version)			9,314	26.30	10,087	1	5	1.25	0.00
$*	Link with identifier (in KBR version)			9,870	27.87	10,705	1	12	1.30	0.00
$@	Language of field (in KBR version)			1,873	5.29	2,193	1	5	1.59	0.00
$a	Genre/form data or focus term			9,870	27.87	10,705	1	12	1.30	0.00
$0	Authority record control number			9,062	25.59	9,351	1	9	1.24	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				14,110	39.84	34,385	1	128	2.26	0.00
$ind1	Type of personal name entry element			14,110	39.84	34,385	1	128	2.26	0.00
$ind2	Type of added entry			14,110	39.84	34,385	1	128	2.26	0.00
$#	number/occurrence of field (in KBR version)			6,208	17.53	16,488	1	128	1.79	0.00
$*	Link with identifier (in KBR version)			14,110	39.84	34,386	1	128	2.26	0.00
$@	Language of field (in KBR version)			43	0.12	43	1	4	1.30	0.00
$a	Personal name			14,110	39.84	34,386	1	128	2.26	0.00
$b	Numeration			815	2.30	850	1	26	1.10	0.00
$c	Titles and other words associated with a name			3,955	11.17	5,061	1	90	1.58	0.00
$d	Dates associated with a name			10,482	29.60	21,595	1	125	1.76	0.00
$f	Date of a work			1	0.00	1	1	12	2.88	1.18
$g	Miscellaneous information			307	0.87	523	1	14	1.16	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			274	0.77	280	1	8	1.07	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			8,494	23.98	13,996	1	120	1.92	0.00
$4	Relationship			12,958	36.59	28,122	1	128	2.34	0.00
710 — Added Entry - Corporate Name				23,541	66.47	28,495	1	28	1.14	0.00
$ind1	Type of corporate name entry element			23,541	66.47	28,495	1	28	1.14	0.00
$ind2	Type of added entry			23,541	66.47	28,495	1	28	1.14	0.00
$#	number/occurrence of field (in KBR version)			9,822	27.73	11,280	1	28	1.16	0.00
$*	Link with identifier (in KBR version)			23,541	66.47	28,495	1	28	1.14	0.00
$@	Language of field (in KBR version)			2,209	6.24	2,498	1	18	1.11	0.00
$a	Corporate name or jurisdiction name as entry element			23,541	66.47	28,495	1	28	1.14	0.00
$b	Subordinate unit			3,323	9.38	3,776	1	10	1.19	0.00
$c	Location of meeting			530	1.50	596	1	8	1.09	0.00
$d	Date of meeting or treaty signing			8,285	23.39	8,695	1	14	1.06	0.00
$f	Date of a work			2	0.01	2	1	2	1.50	0.12
$g	Miscellaneous information			9,466	26.73	10,951	1	27	1.11	0.00
$l	Language of a work			17	0.05	19	1	7	1.09	0.00
$1	Real World Object URI			3,159	8.92	3,163	1	4	1.01	0.00
$4	Relationship			23,168	65.42	26,340	1	28	1.14	0.00
720 — Added Entry - Uncontrolled Name				118	0.33	138	1	33	1.41	0.00
$ind1	Type of name			118	0.33	138	1	33	1.41	0.00
$#	number/occurrence of field (in KBR version)			118	0.33	138	1	33	1.44	0.00
$a	Name			118	0.33	138	1	33	1.41	0.00
$4	Relationship			118	0.33	138	1	33	1.45	0.00
730 — Added Entry - Uniform Title				42	0.12	86	1	11	1.32	0.01
$ind1	Nonfiling characters			42	0.12	86	1	11	1.32	0.01
$ind2	Type of added entry			42	0.12	86	1	11	1.32	0.01
$#	number/occurrence of field (in KBR version)			38	0.11	78	1	11	1.45	0.01
$*	Link with identifier (in KBR version)			42	0.12	86	1	11	1.32	0.01
$a	Uniform title			42	0.12	86	1	11	1.32	0.01
$l	Language of a work			2	0.01	2	1	11	1.90	0.03
$p	Name of part/section of a work			1	0.00	2	1	2	1.21	0.06
751 — Added Entry - Geographic Name				1	0.00	1	1	3	1.11	0.00
$#	number/occurrence of field (in KBR version)			1	0.00	1	1	3	1.11	0.00
$*	Link with identifier (in KBR version)			1	0.00	1	1	3	1.11	0.00
$a	Geographic name			1	0.00	1	1	3	1.11	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	1.03	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	1.28	0.01
$ind1	Note controller			8	0.02	9	1	18	1.28	0.01
$ind2	Display constant controller			8	0.02	9	1	18	1.28	0.01
$#	number/occurrence of field (in KBR version)			6	0.02	7	1	18	1.33	0.01
$*	Link with identifier (in KBR version)			8	0.02	9	1	18	1.28	0.01
$a	Main entry heading			3	0.01	3	1	17	1.30	0.01
$t	Title			8	0.02	9	1	18	1.28	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	1.34	0.04
$ind1	Note controller			5	0.01	5	1	10	1.34	0.04
$ind2	Display constant controller			5	0.01	5	1	10	1.34	0.04
$#	number/occurrence of field (in KBR version)			4	0.01	4	1	10	1.41	0.08
$*	Link with identifier (in KBR version)			5	0.01	5	1	10	1.34	0.04
$g	Related parts			1	0.00	1	1	2	1.04	0.04
$t	Title			5	0.01	5	1	10	1.34	0.04
772 — Supplement Parent Entry				16	0.05	16	1	9	1.03	0.01
$ind1	Note controller			16	0.05	16	1	9	1.03	0.01
$ind2	Display constant controller			16	0.05	16	1	9	1.03	0.01
$#	number/occurrence of field (in KBR version)			12	0.03	12	1	2	1.01	0.00
$*	Link with identifier (in KBR version)			16	0.05	16	1	9	1.03	0.01
$a	Main entry heading			2	0.01	2	1
$g	Related parts			6	0.02	6	1	2	1.70	0.00
$t	Title			16	0.05	16	1	9	1.03	0.01
$z	International Standard Book Number			1	0.00	1	1
773 — Host Item Entry				24,711	69.78	25,016	1	6	1.05	0.00
$ind1	Note controller			24,711	69.78	25,016	1	6	1.05	0.00
$ind2	Display constant controller			24,711	69.78	25,016	1	6	1.05	0.00
$#	number/occurrence of field (in KBR version)			20,323	57.39	20,421	1	6	1.05	0.00
$*	Link with identifier (in KBR version)			24,711	69.78	25,016	1	6	1.05	0.00
$a	Main entry heading			4,340	12.25	4,340	1	5	1.01	0.00
$b	Edition			2,527	7.14	2,559	1	3	1.03	0.00
$g	Related parts			24,374	68.82	24,656	1	6	1.04	0.00
$h	Physical description			13,317	37.60	13,346	1	2	1.00	0.00
$n	Note			6,306	17.81	6,558	1	4	1.01	0.00
$r	Report number			1	0.00	1	1
$t	Title			24,711	69.78	25,016	1	6	1.05	0.00
$z	International Standard Book Number			75	0.21	75	1	6	1.01	0.00
775 — Other Edition Entry				233	0.66	570	1	25	1.95	0.00
$ind1	Note controller			233	0.66	570	1	25	1.95	0.00
$ind2	Display constant controller			233	0.66	570	1	25	1.95	0.00
$#	number/occurrence of field (in KBR version)			177	0.50	461	1	25	2.22	0.00
$*	Link with identifier (in KBR version)			233	0.66	570	1	25	1.95	0.00
$a	Main entry heading			151	0.43	328	1	22	2.07	0.00
$i	Relationship information			41	0.12	70	1	23	1.92	0.00
$t	Title			233	0.66	570	1	25	1.95	0.00
$z	International Standard Book Number			135	0.38	281	1	25	2.17	0.00
776 — Additional Physical Form Entry				2	0.01	2	1	8	1.04	0.00
$ind1	Note controller			2	0.01	2	1	8	1.04	0.00
$ind2	Display constant controller			2	0.01	2	1	8	1.04	0.00
$*	Link with identifier (in KBR version)			2	0.01	2	1	8	1.04	0.00
$a	Main entry heading			2	0.01	2	1	8	1.04	0.00
$t	Title			2	0.01	2	1	8	1.04	0.00
$z	International Standard Book Number			2	0.01	2	1	8	1.04	0.00
777 — Issued With Entry				37	0.10	37	1	10	1.50	0.01
$ind1	Note controller			37	0.10	37	1	10	1.50	0.01
$ind2	Display constant controller			37	0.10	37	1	10	1.50	0.01
$#	number/occurrence of field (in KBR version)			21	0.06	21	1	10	1.55	0.02
$*	Link with identifier (in KBR version)			37	0.10	37	1	10	1.50	0.01
$a	Main entry heading			17	0.05	17	1	10	1.91	0.03
$t	Title			37	0.10	37	1	10	1.50	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	1.03	0.01
$t	Title			1	0.00	1	1	15	1.06	0.00
786 — Data Source Entry				4	0.01	4	1	7	1.43	0.00
$ind1	Note controller			4	0.01	4	1	7	1.43	0.00
$ind2	Display constant controller			4	0.01	4	1	7	1.43	0.00
$#	number/occurrence of field (in KBR version)			2	0.01	2	1	7	1.43	0.00
$*	Link with identifier (in KBR version)			4	0.01	4	1	7	1.43	0.00
$a	Main entry heading			3	0.01	3	1	4	1.26	0.00
$g	Related parts			2	0.01	2	1	7	1.51	0.00
$t	Title			4	0.01	4	1	7	1.43	0.00
$z	International Standard Book Number			1	0.00	1	1	4	1.23	0.00
787 — Other Relationship Entry				64	0.18	150	1	15	1.08	0.00
$ind1	Note controller			64	0.18	150	1	15	1.08	0.00
$ind2	Display constant controller			64	0.18	150	1	15	1.08	0.00
$#	number/occurrence of field (in KBR version)			14	0.04	19	1	15	1.09	0.00
$*	Link with identifier (in KBR version)			64	0.18	150	1	15	1.08	0.00
$a	Main entry heading			15	0.04	15	1	11	1.32	0.01
$g	Related parts			9	0.03	9	1	15	1.03	0.00
$i	Relationship information			11	0.03	13	1	4	1.04	0.00
$t	Title			64	0.18	150	1	15	1.08	0.00
$z	International Standard Book Number			1	0.00	1	1	12	1.18	0.01
80X-83X: Series Added Entry
800 — Series Added Entry - Personal Name				7	0.02	7	1
$ind1	Type of personal name entry element			7	0.02	7	1
$#	number/occurrence of field (in KBR version)			2	0.01	2	1
$*	Link with identifier (in KBR version)			7	0.02	7	1
$a	Personal name			7	0.02	7	1
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	2.21	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				10,174	28.73	12,441	1	51	1.08	0.00
$ind1	Access method			10,174	28.73	12,441	1	51	1.08	0.00
$ind2	Relationship			10,174	28.73	12,441	1	51	1.08	0.00
$#	number/occurrence of field (in KBR version)			3,418	9.65	3,762	1	45	1.07	0.00
$a	Host name			5	0.01	5	1	2	1.08	0.08
$u	Uniform Resource Identifier			10,164	28.70	12,435	1	51	1.08	0.00
$y	Link text			16	0.05	27	1	51	2.07	0.03
$z	Public note			275	0.78	275	1	10	1.01	0.00
$7	Access status			10,083	28.47	12,344	1	51	1.10	0.00
880 — Alternate Graphic Representation				1	0.00	1	1	4	1.10	0.00
$#	number/occurrence of field (in KBR version)			1	0.00	1	1	4	1.09	0.00
$a	Same as associated field			1	0.00	1	1	4	1.10	0.00
$6	Linkage			1	0.00	1	1	4	1.09	0.00
Holdings: MARC Holdings tags
866 — Textual Holdings-Basic Bibliographic Unit				3	0.01	3	1	7	1.47	0.00
$ind1	Field encoding level			3	0.01	3	1	7	1.47	0.00
$ind2	Type of notation			3	0.01	3	1	7	1.47	0.00
$#	number/occurrence of field (in KBR version)			2	0.01	2	1	7	1.32	0.00
$a	Textual holdings			3	0.01	3	1	7	1.47	0.00
OCLCMARC tags
911 — Manifestation identifier				7,663	21.64	7,663	1	4	1.00	0.00
$ind1				25	0.07	25	1	2	1.00	0.00
$#				2,507	7.08	2,507	1	4	1.00	0.00
$a				7,663	21.64	7,857	1	8	1.04	0.00
Locally defined tags of the Royal Library of Belgium
997 — Item information				35,292	99.65	39,239	1	254	1.13	0.00
$#	number/occurrence of field			2,887	8.15	3,120	1	16	1.29	0.00
$*	Link with identifier			35,292	99.65	39,239	1	254	1.13	0.00
$a	Barcode number			35,292	99.65	39,239	1	254	1.13	0.00
$c	Library (holding institution)			35,292	99.65	39,239	1	254	1.13	0.00
$d	Section (department of holding institution)			35,292	99.65	39,240	1	254	1.13	0.00
$g	Call Number			34,922	98.61	38,837	1	254	1.14	0.00
$h	Rating2			1	0.00	1	1	2	1.02	0.00
$t	Document type			35,292	99.65	39,239	1	254	1.13	0.00
$v	inventory number			6,110	17.25	6,414	1	19	1.09	0.00
unknown origin
867				2	0.01	2	1	3	1.13	0.04
$#				2	0.01	2	1	3	1.13	0.04
$a				1	0.00	1	1	3	1.13	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