MARC Usage in WorldCat
A summary of the use of MARC fields and subfields in the WorldCat database.
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- TOTAL Number of Records with this field:
- 25,361,719 out of a total of 386,221,072 MARC records as of 1 Jan 2017
- Overall number of Holdings:
- 936,037,379
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| 1 | 1,758 | 2,183 |
| 3 | 5 | 19 |
| 2 | 226 | 22,525 |
| 5 | 9 | 96 |
| 4 | 209 | 31,074 |
| 7 | 1,145 | 38,247 |
| 6 | 64,541 | 397,544 |
| 9 | 2 | 78 |
| a | 16,913,777 | 740,786,076 |
| c | 1,761,560 | 25,071,948 |
| b | 3,175,164 | 140,435,797 |
| e | 110 | 136 |
| d | 19,520,581 | 861,628,185 |
| g | 15,193 | 73,652 |
| f | 27 | 40 |
| i | 21,920,271 | 951,793,779 |
| h | 493,967 | 16,532,465 |
| k | 289,983 | 5,728,230 |
| m | 328 | 2,874 |
| l | 3 | 4 |
| o | 440,494 | 5,735,265 |
| n | 440,166 | 3,414,197 |
| q | 126 | 421 |
| p | 112 | 4,000 |
| s | 819,538 | 40,218,602 |
| r | 109 | 1,971 |
| u | 314 | 12,684 |
| t | 23,121,869 | 956,125,963 |
| w | 27,667,302 | 1,149,312,556 |
| v | 5 | 13 |
| y | 362 | 1,228 |
| x | 434,610 | 24,582,041 |
| z | 3,656,107 | 318,170,221 |
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- TOTAL Number of Records with this field:
- 22,612,104 out of a total of 333,518,928 MARC records as of 1 Jan 2016
- Overall number of Holdings:
- 859,601,331
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| 1 | 2,294 | 2,820 |
| 3 | 4 | 17 |
| 2 | 274 | 26,378 |
| 5 | 8 | 14 |
| 4 | 162 | 25,928 |
| 7 | 1,168 | 36,697 |
| 6 | 60,614 | 355,397 |
| 9 | 1 | 1 |
| a | 14,999,047 | 690,172,045 |
| c | 2,485,080 | 26,484,552 |
| b | 2,953,070 | 134,918,322 |
| e | 121 | 143 |
| d | 17,297,143 | 804,058,564 |
| g | 14,062 | 67,816 |
| f | 17 | 31 |
| i | 18,735,443 | 875,356,881 |
| h | 339,280 | 14,012,905 |
| k | 279,679 | 4,270,066 |
| j | 1 | 1 |
| m | 311 | 3,345 |
| l | 3 | 4 |
| o | 382,515 | 5,226,782 |
| n | 300,523 | 2,437,320 |
| q | 66 | 381 |
| p | 111 | 3,183 |
| s | 739,739 | 37,160,554 |
| r | 95 | 1,784 |
| u | 245 | 9,693 |
| t | 19,756,790 | 885,377,402 |
| w | 26,457,617 | 1,066,668,065 |
| v | 5 | 13 |
| y | 396 | 1,255 |
| x | 392,912 | 22,117,942 |
| z | 2,352,438 | 260,462,558 |
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- TOTAL Number of Records with this field:
- 20,961,669 out of a total of 333,518,928 MARC records as of 1 Jan 2015
- Overall number of Holdings:
- 783,992,373
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| 1 | 2,412 | 2,869 |
| 3 | 8 | 51 |
| 2 | 309 | 19,298 |
| 5 | 7 | 39 |
| 4 | 125 | 9,536 |
| 7 | 668 | 33,324 |
| 6 | 56,838 | 311,553 |
| a | 14,042,180 | 637,541,332 |
| c | 2,604,746 | 25,920,076 |
| b | 2,827,481 | 129,371,411 |
| e | 119 | 141 |
| d | 16,290,451 | 747,215,432 |
| g | 11,497 | 64,406 |
| f | 17 | 32 |
| i | 17,449,216 | 802,083,875 |
| h | 303,202 | 10,807,014 |
| k | 269,795 | 3,029,655 |
| j | 1 | 1 |
| m | 337 | 2,959 |
| l | 2 | 11 |
| o | 368,838 | 4,505,693 |
| n | 284,218 | 2,404,659 |
| q | 56 | 340 |
| p | 103 | 975 |
| s | 688,111 | 32,359,453 |
| r | 87 | 1,650 |
| u | 206 | 7,384 |
| t | 18,073,733 | 815,747,210 |
| w | 24,479,470 | 980,387,109 |
| v | 5 | 221 |
| y | 392 | 1,244 |
| x | 362,551 | 20,087,164 |
| z | 2,122,030 | 215,644,017 |
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- TOTAL Number of Records with this field:
- 19,709,418 out of a total of 311,114,134 MARC records as of 1 Jan 2014
- Overall number of Holdings:
- 694,315,232
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| 1 | 2,406 | 2,733 |
| 3 | 6 | 21 |
| 2 | 322 | 10,859 |
| 5 | 6 | 24 |
| 4 | 93 | 7,297 |
| 7 | 669 | 31,916 |
| 6 | 48,861 | 286,250 |
| 9 | 3 | 3 |
| a | 11,737,892 | 575,778,104 |
| c | 4,414,709 | 26,940,160 |
| b | 2,370,003 | 120,239,411 |
| e | 115 | 117 |
| d | 13,708,990 | 674,223,376 |
| g | 10,914 | 60,321 |
| f | 12 | 21 |
| i | 14,562,292 | 717,297,776 |
| h | 235,727 | 9,247,389 |
| k | 242,451 | 806,995 |
| j | 1 | 1 |
| m | 292 | 2,409 |
| l | 2 | 4 |
| o | 345,692 | 1,667,443 |
| n | 280,433 | 750,055 |
| q | 23 | 37 |
| p | 95 | 751 |
| s | 546,508 | 29,711,456 |
| r | 66 | 1,561 |
| u | 136 | 5,855 |
| t | 15,102,004 | 732,447,062 |
| w | 23,740,457 | 870,595,205 |
| v | 5 | 12 |
| y | 384 | 1,199 |
| x | 348,869 | 17,182,139 |
| z | 1,735,063 | 156,059,909 |
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- TOTAL Number of Records with this field:
- 20,755,809 out of a total of 289,294,984 MARC records as of 1 Jan 2013
- Overall number of Holdings:
- 625,831,591
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| 1 | 2,420 | 2,705 |
| 3 | 6 | 21 |
| 2 | 329 | 6,843 |
| 5 | 6 | 11 |
| 4 | 52 | 1,593 |
| 7 | 650 | 27,320 |
| 6 | 39,223 | 169,747 |
| 9 | 3 | 45 |
| a | 11,947,057 | 530,626,847 |
| c | 4,809,417 | 25,111,684 |
| b | 2,490,411 | 115,083,448 |
| e | 113 | 114 |
| d | 14,084,706 | 616,401,370 |
| g | 10,382 | 58,517 |
| f | 12 | 20 |
| i | 14,552,933 | 651,581,698 |
| h | 200,153 | 8,799,816 |
| k | 238,831 | 567,373 |
| j | 1 | 1 |
| m | 217 | 1,817 |
| l | 2 | 3 |
| o | 280,263 | 964,821 |
| n | 252,221 | 537,978 |
| q | 24 | 37 |
| p | 88 | 2,153 |
| s | 536,832 | 27,193,755 |
| r | 62 | 1,462 |
| u | 110 | 4,527 |
| t | 15,130,133 | 669,440,980 |
| w | 26,769,575 | 773,107,148 |
| v | 5 | 12 |
| y | 380 | 1,466 |
| x | 376,842 | 15,171,250 |
| z | 1,993,389 | 94,148,255 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
MARC Usage in WorldCat is a project of OCLC Research.