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MedMARC

The MedMARC database contains bibliographic records from the National Library of Medicine.

The Library Corporation, Research Park, Inwood, WV 25428

A Free MARC Inventory and Census Service
Institution: 9988 MedMARC
Profile Type: MARC Leader and Fields
Performed on: Sat, Jan 13, 2024. 5:31:14 PM

Overall Statistics
DescriptionMaximumMinimumAverageTotals
Number of Records---1295584
Characters per Record279432259761265626155
Characters per Field50114381105696889
Fields per Record11992228812654

Record Status (MARC Leader Position 05)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
Higher Encoding Levela110.00104830.00
Corrected or Revisedc117604990.77108733312085.91
Newn130371.01180561011.43
Correction from Prepublicationp1064878.221246168899.85

Record Type (MARC Leader Position 06)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
Language Materiala122180694.31110918191387.64
Printed Musicc70.0084820.00
Manuscript Musicd10.0010080.00
Printed Mape960.01922050.01
Projected Mediag469233.62794198156.28
Nonmusical Sound Recordingi35690.2835775100.28
Two Diminsional, Non-Projectionk148921.15259665822.05
Computer Filem35830.2849019620.39
Kitso850.011389070.01
Mixed Materialp4930.0411351810.09
Three Dimensional Artifactr230.00362100.00
Manuscript Materialt41060.3255568180.44

Bibliographic Level (MARC Leader Position 07)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
Monographic Componenta22260.1721797180.17
Collectionc32850.2527881880.22
Integrating Resourcei9640.0714171730.11
Monograph Itemm117954191.04111727174988.28
Serials1095688.461063597658.40

Control Type (MARC Leader Position 08)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
No Specified Type[blank]128078398.86120128796394.92
Archivala148011.14287286302.27

Character Encoding (MARC Leader Position 09)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
MARC-8[blank]254061.96171513871.36
UCS/Unicodea127017898.04121286520695.83

Encoding Level (MARC Leader Position 17)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
Full Level[blank]58629345.2567019990252.95
Full; Unexamined130399523.4619108635115.10
Less Than Full Level2230.00340310.00
Abbreviated Level3170131.31101185060.80
Core Level4889666.871108458748.76
Preliminary Level536170.2841130520.32
Minimal Level728991122.3823611376118.66
Pre-publication854140.4271787500.57
Unknown Levelu60.0040460.00
Not Applicablez10.009260.00
Record DeletedJ30.0039850.00
Less Than Full LevelK200.00164250.00
Non-LC/Non-NLML10.009110.00
Less Than Full LevelM310.00266870.00
Unknown Code[unprintable]2900.022733860.02

Descriptive Cataloging Form (MARC Leader Position 18)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
Non ISBD Form[blank]46272835.7231799268525.13
AACR2a63256648.8265806751952.00
ISBD Formi18754514.4824689633719.51
Unknownu127430.9870577000.56
Unknown Code[unprintable]20.0023520.00

Linked Record Requirement (MARC Leader Position 19)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
Related Record not Required[blank]1295584100.00123001659397.19

Modified Record (MARC 008 Position 38)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
Not modified[blank]126468797.62120147273594.93
Dashed-on Omit.d105830.8282903540.66
Romanizedo194421.50193398281.53
Romanized scriptr7210.067009810.06
Shorteneds790.01984910.01
Missing Charactersx40.0050960.00
No attempt to code|680.011091080.01

Cataloging Source (MARC 008 Position 39)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
Library of Congress[blank]128877499.47122638190396.90
National Lib. Med.b9330.075726890.05
LC Coop. Cat.c220.00232310.00
Other Sourcesd58500.4530326610.24
Unknown Sourceu20.0043070.00
No attempt to code|20.008030.00
Unknown Code[unprintable]10.009990.00

Target Audience (MARC 008 Position 22)
DescriptionMARC CodeRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
Unknown or not spec.[blank]115839789.41107602189085.02
Preschoola160.00256700.00
Primaryb100.00151690.00
Pre-adolescentc210.00254140.00
Adolescentd230.00362500.00
Adulte3670.036540530.05
Specializedf146091.13252388151.99
Generalg2710.024270520.03
Juvenilej4760.044170140.03
No attempt to code|104450.81183340151.45

Collection Age (MARC 008 Position 07-10)
DescriptionRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
--- 2025 ---80.00151950.00
--- 2024 ---860.011987600.02
--- 2023 ---2010.024436350.04
--- 2022 ---4050.038443600.07
--- 2021 ---14920.1235000620.28
--- 2020 ---49310.38109391170.86
--- 2019 ---73770.57142923591.13
--- 2018 ---92260.71163889331.29
--- 2017 ---98790.76166199541.31
--- 2016 ---101150.78161194961.27
--- 2015 ---106940.83171413811.35
--- 2014 ---117940.91185972951.47
--- 2013 ---123180.95185302711.46
--- 2012 ---126910.98188047351.49
--- 2011 ---125990.97182561361.44
--- 2010 ---138691.07192933571.52
--- 2009 ---143211.11186997241.48
--- 2008 ---145941.13185788061.47
--- 2007 ---162131.25194813401.54
--- 2006 ---164841.27192343061.52
--- 2005 ---165351.28187104311.48
--- 2004 ---170041.31184166571.46
--- 2003 ---175441.35183669281.45
--- 2002 ---174521.35181032161.43
--- 2001 ---170211.31175411941.39
--- 2000 ---181651.40187801891.48
--- 1999 ---171191.32174531521.38
--- 1998 ---158561.22156571501.24
--- 1997 ---161271.24156047801.23
--- 1996 ---164451.27156813281.24
--- 1995 ---165251.28156352591.24
--- 1994 ---169551.31158467771.25
--- 1993 ---161531.25150829831.19
--- 1992 ---168071.30155686281.23
--- 1991 ---170451.32159307781.26
--- 1990 ---197781.53188210021.49
1980 - 198915952712.3114221958411.24
1970 - 197913157810.161170703679.25
1960 - 19691131148.73837082756.61
1950 - 1959828456.39554493644.38
1940 - 1949490603.79365873912.89
1930 - 1939297352.30219629691.74
1920 - 1929223581.73176266441.39
1910 - 1919230381.78202993071.60
1900 - 1909328232.53303634592.40
1890 - 1899285312.20258144482.04
1880 - 1889243211.88215170041.70
1870 - 1879180211.39154143141.22
1860 - 1869140221.08123677670.98
1850 - 1859103200.8087396090.69
1840 - 184987630.6871287800.56
1830 - 183976430.5960647220.48
1820 - 182957450.4445446910.36
1810 - 181942240.3338665270.31
1800 - 180968480.5358585770.46
1790 - 179964840.5052068660.41
1780 - 178960630.4743901640.35
1770 - 177954780.4239672700.31
1760 - 175943340.3330996430.24
1750 - 175942580.3329986400.24
1740 - 174939840.3127767700.22
1730 - 173929830.2321779970.17
1720 - 172929540.2322177840.18
1710 - 171924760.1917202920.14
1700 - 170924610.1918397870.15
1600 - 1699143791.11121793290.96
1500 - 159963220.4971559160.57
1400 - 14996810.0513535100.11
1300 - 13991030.013260340.03
1200 - 1299650.011871360.01
1100 - 1199140.00239550.00
1000 - 10997730.066932010.05
Date Unknown67170.5232389870.26
Pre 10001550.011427310.01
No Date5530.045343770.04
Unknown Code30.0027310.00

Languages (MARC 008 Position 35-37)
DescriptionRecord CountPercent of RecordsFile Space ConsumedPercent of File Space
NOT CODED80.0093680.00
ENGLISH73687456.8881178825264.14
FRENCH866946.69641054465.07
GERMAN13083110.10950131677.51
SPANISH473783.66373970372.95
ACHINESE10.0013390.00
ACOLI10.0017200.00
AFRICAANS1300.01982160.01
ALTAIC10.004800.00
AKKADIAN10.0012200.00
ALBANIAN1900.011243850.01
AMHARIC130.00185530.00
ARABIC10930.0813036800.10
ARMENIAN730.01462510.00
ASSAMESE10.007370.00
AZTEC10.0013540.00
AZERBAIJANI1050.01847970.01
BAMILEKE20.0013300.00
BASHKIR20.0016300.00
BAMBARA20.0021390.00
BALINESE20.0025420.00
BANTU (OTHER)50.0049110.00
BASQUE20.0018360.00
BYELORUSSIAN480.00337010.00
BEMBA30.0041640.00
BANGALI630.00531650.00
BRETON10.0012830.00
BULGARIAN41630.3225926250.20
BURMESE520.00536580.00
CENT. AM. INDIAN70.0056260.00
CATALAN4550.043809800.03
CEBUANO20.0038230.00
CHINESE159341.23146312671.16
CREOLE ENGLISH60.00110370.00
CREOLE FRENCH320.00531880.00
CREE10.0014740.00
CREOLES20.0015020.00
CZECH60550.4739348940.31
DANISH53760.4136783690.29
DUTCH155081.20111744940.88
DAKOTA10.0019030.00
DIVEHI80.00126160.00
DRAVIDIAN10.004690.00
DYULA20.0013690.00
EFIK30.0040980.00
EGYPTIAN10.0011470.00
ELAMITE10.0015230.00
ENGLISH MIDDLE80.00107930.00
ENGLISH,OLD10.008480.00
ESTONIAN3930.032576600.02
EWONDO10.007200.00
FINNISH14210.1110429430.08
FRENCH MIDDLE210.00340570.00
FRENCH OLD30.0038520.00
FULAH30.0024470.00
GA10.0015120.00
GANDA40.0075490.00
GERMANIC10.0020680.00
GEORGIAN2300.021419630.01
GERMAN MIDDLE30.0036630.00
GREEK ANCIE540.00785200.01
GREEK10450.086780830.05
GUJARATI530.00313300.00
HAUSA220.00397960.00
HAWAIIAN60.0081240.00
HEBREW2470.022464890.02
HILIGAYNON20.0039530.00
HINDI2540.022166500.02
HMONG10.0012480.00
HUNGARIAN29170.2320005870.16
IGBO70.00131140.00
ICELANDIC1010.011012060.01
ILOKO10.0020050.00
INDIC40.0058240.00
INDONESIAN17410.1315979470.13
IRANIAN10.004430.00
ITALIAN383332.96269180432.13
JAPANESE347522.68289393762.29
KANNADA280.00194580.00
KAREN10.008700.00
KIRGHIZ70.0054260.00
KOREAN34040.2631486350.25
KRU20.0017040.00
LAO120.00116600.00
LATIN396823.06279587552.21
LATVIAN3460.032249660.02
LITHUANIAN7260.064959940.04
LOZI10.006750.00
LUNDA10.007710.00
MACEDONIAN1100.01770480.01
MALAYALAM230.00175550.00
MANDINGO10.009780.00
MAORI20.0036310.00
MARATHI610.00409460.00
MALAY1120.011149010.01
MANIPURI20.0013160.00
MONGOLIAN730.01782300.01
MOSSI20.0015210.00
MULTI. LANGUAGE52380.4040365140.32
MAYAN80.0065320.00
MALTESE140.00237960.00
N. AMER. INDIAN20.0042290.00
NAVAJO60.00104340.00
NEPALI130.00143080.00
NIGER-KORDOFAN110.00117940.00
NILO-SAHARAN40.0081230.00
NORWEGIAN26450.2018249810.14
NYANJA80.00125450.00
NYANKOLE20.0039870.00
NYORO10.006910.00
ORIYA30.0021270.00
OTTOMAN TURK260.00277070.00
PANJABI80.0052440.00
PAPIAMENTO30.0043690.00
PERSIAN8170.069154320.07
PHILIPPINE (OTHER)20.0018660.00
POLISH94670.7365561410.52
PORTUGUESE145461.12122976530.97
PROVENCAL OLD10.0010010.00
PUSHTO100.00118730.00
QUECHUA10.008420.00
RAROTONGAN10.0019700.00
RAETO-ROMANCE10.0021160.00
ROMANY20.0016350.00
RUANDA20.0013910.00
ROMANIAN34830.2722625050.18
RUSSIAN610054.71454463323.59
S. AMER. INDIAN10.0010800.00
SANSKRIT980.01840750.01
SERBO-CYRILLIC20.0010080.00
SERBO-ROMAN20.0010900.00
SIGN LANGUAGES10.0016170.00
SLAVIC10.0013220.00
SLOVAK9370.076384840.05
SLOVENIAN5620.044022200.03
SOMALI60.0067160.00
SONGHAI20.0013640.00
SONINKE20.0023450.00
SUNDANESE10.006920.00
SWAHILI1160.011908850.02
SWEDISH63250.4942899380.34
TAMASHEK50.0043860.00
TAMIL2640.022141210.02
TELUGU130.0087490.00
TETUM10.008260.00
TIMNE10.007530.00
THAI7370.067782160.06
TIBETAN2460.023535890.03
TIGRINYA10.0017270.00
TONGA ISLAND10.0020340.00
TURKMEN100.0089630.00
TURKISH13460.1012108980.10
UIGUR20.0020650.00
UKRAINIAN16990.1314534240.11
UNDETERMINED34440.2717561510.14
URDU4250.033172580.03
UZBEK670.01488260.00
VIETNAMESE1790.011676970.01
WELSH80.0065830.00
WOLOF10.0022300.00
XHOSA10.0028470.00
YIDDISH110.00106000.00
YORUBA150.00273080.00
ZULU20.0016390.00
Unknown Code43570.3432681110.26

Census of MARC Fields Used in the Collection
TagRecords with TagRepeated FieldsMax LengthMin LengthAverage LengthPercent of RecordsFile Space ConsumedPercent of File Space
11295584-221111100.00146997651.16
31288276-44499.4451531040.41
51290173-16161699.58206427681.63
6278261222418182.155030980.04
7209335560852351216.1632680230.26
81295584-404040100.00518233604.09
91-5550.0050.00
10340352-184101526.2752693710.42
1525367584407161.964195770.03
16242049383912171.874465100.04
172-3937380.00760.00
1919925-87710181.543718070.03
2048409156479012572037.36216223041.71
2252604-16711244.0612718900.10
24218484829190.17433680.00
252487-4210240.19607590.00
2756-2311180.0010190.00
284731292927360.371843470.01
292-1816170.00340.00
30188131527101.451884300.01
311-5550.0050.00
32225-1711150.0235900.00
33441228150.007160.00
3418153590.001850.00
3512955847354651413915100.00309887882.45
362-1919190.00380.00
37320302851777312.4710190500.08
401295546-6471123100.00305692132.42
4156927-827124.397110120.06
422727961476921.0625028650.20
4337094-567112.864384230.03
441850-688220.14417710.00
45939-388100.0795080.00
461-1717170.00170.00
472-1410120.00240.00
49844-8880.0767520.00
50918301650555207.0919327810.15
5199124717350.0135410.00
5231224790.003030.00
5523111344397180.18686550.01
601222781692889451994.38248627661.96
6614821-8561.14889620.01
691-1313130.00130.00
703355-359200.26672740.01
72126614195348110.981947900.02
742123382627150.16395260.00
809717737160.0118570.00
8279895856445166.1713031360.10
835-5610370.001880.00
8458031976996190.451538700.01
851-7770.0070.00
8675402781005190.581557230.01
8810742901018150.08216100.00
9044024013250.03112640.00
92270217375170.21487780.00
9614305368529201.103007240.02
991-1111110.00110.00
100729081-19753056.27222570961.76
110103193-2969577.9659490540.47
11138673-3989872.9833866240.27
13013582-3989431.055904840.05
2102382312721188281.847069730.06
22222328312746421.729499760.08
24014011-2895441.086242910.05
24220048-29313501.5510213550.08
2431-2626260.00260.00
2451295584-14596103100.0013462268910.64
2461439113437754554611.1183009130.66
2471264018812580.0197730.00
2502213261893952017.0844316050.35
2555318410200.0011290.00
2561606-5211240.12391990.00
2574893-589170.38870800.01
26011471311776044464888.54561257894.43
2634397-10880.34351870.00
264138711917950585510.7181605000.64
2699-10221530.004800.00
27019116818990.0019970.00
30012754962116326152498.45322419382.55
30610-1010100.001000.00
31066150-1395135.119210340.07
321689429661086250.532529780.02
33612708432486166132598.09329171542.60
337127084422570152698.09340242112.69
338127084327568142698.09334118442.64
34067317162790.0566410.00
3411-2222220.00220.00
3449657547240.0137210.00
34513-3613230.002990.00
34669-288140.0110060.00
34714152757260.0150340.00
350200-1036100.0220200.00
35195-619122210.01210610.00
36296965271802975287.4835925040.28
3631-1111110.00110.00
3661-3232320.00320.00
3801-2121210.00210.00
385616217270.001890.00
386322416190.00970.00
400285-15931740.02212390.00
4104433122329800.343588040.03
41116-126731150.0018410.00
4401284191239460.10600360.00
490318898962334954624.61151905621.20
500504551308567199956338.94512648804.05
50133303521199912792.5726814560.21
5024059264177493.1319998480.16
504332632763123854625.67155997681.23
505672339690200066465.19497480883.93
506165668332151891.2831378630.25
50826254111068442.0311593370.09
51037534450202506312.9025820220.20
51125903263211450.201181400.01
51328-4217240.006760.00
51517142188393611551.3210637190.08
51631421788390.02126270.00
5189345431213350.723328880.03
520848683489200056076.55537192814.24
52149371247881340.386680190.05
5245852399251110.05652980.01
52523846355819570.181407520.01
5261-2727270.00270.00
530846478108698286.5324756340.20
5322-6132460.00930.00
533759969062194591195.87101766160.80
5343633385201180.03433470.00
535301-1527640.02195410.00
536445842199972100.349488970.07
5381812727148447671.4014163070.11
540537552451291244.1566869650.53
5412028610840315681.5714043900.11
54258773043749700.454352880.03
54413-180621330.0017370.00
545768561999145740.064733280.04
546430751989248433.3218919010.15
54724-664321870.0044880.00
550191497751170151031.4820543340.16
55510431261314720.08769420.01
55611-11632640.007130.00
5611872254293227951.4518414160.15
563347925155228930.273283150.03
580235924046118417791.8221852990.17
5819-215971570.0014140.00
58372486516607738535.5966166870.52
5855767430501160.04677880.01
58650841816980.0057220.00
5881917090123179731.4820732920.16
5904-13312710.002850.00
5974-12615490.001980.00
5987-13015660.004650.00
6004001062942508353.0916552110.13
6104319444414388453.3321667510.17
6115813819118730.04453920.00
63021103771738370.16924580.01
6501083387137211520966183.6215199752512.01
6512194181043712985016.94116029380.92
653639652197350.492240360.02
6553740093221912374928.87202565761.60
690226427450.001810.00
6957127417360.006880.00
70047193920810930262936.43203205191.61
7102908897506434165322.45195853531.55
711944144830115880.738726340.07
7203-3923300.00900.00
730119888822226410.935307680.04
740241910512697420.191492060.01
7522-4821340.00690.00
75317813152613240.14508940.00
76066201169460.0139940.00
76213814913680.0014310.00
765254419413590.02152500.00
767701918227850.0176020.00
77098925626110720.08902280.01
7721424904858670.111022130.01
773282871979760.222160470.02
77410710326680.0011650.00
7754807325914820.04457430.00
7761068910330910150.831626160.01
7771272419513750.01114390.00
7803029018285465722.3423394820.18
7852696535605477722.0821978500.17
787130833626611890.101466860.01
8005701516226700.04413420.00
81057199719120800.444672330.04
811187-20550980.01184920.00
8302459521596225775118.98134348331.06
8505419-75680.42436930.00
8522-5151510.001020.00
8569286066663755467.1746332500.37
8801591657613501117621.2345759640.36
8865816124723520.00114660.00
891244427370.002260.00
9103-7770.00210.00
9112-4545450.00900.00
93612-4612300.003600.00
9381-2121210.00210.00
94740-22680.003570.00
95080815221098390.06924130.01
9513323979450.0025200.00
9532695811260.009400.00
98634641397250.0387860.00
987189222511310.0159450.00
9881-2323230.00230.00
9906-12770.00470.00
9911-6660.0060.00
992697-7610200.05142590.00
993699-3417210.05152820.00
994709-3211210.05155490.00
995722-3318250.06181770.00
99615-4320230.003500.00
997180321417470.01101330.00
99822-3520270.006110.00
9991586-8770.12113020.00

To learn more about ITS.MARC, please contact TLC at 1.800.325.7759 or email us at info@tlcdelivers.com.

Database Profiles