MARC Usage in WorldCat
A summary of the use of MARC fields and subfields in the WorldCat database.
050: LC Call No.
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- TOTAL Number of Records with this field:
- 70,405,592 out of a total of 386,221,072 MARC records as of 1 Jan 2017
- Overall number of Holdings:
- 1,827,006,681
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| a | 72,214,667 | 1,914,429,548 |
| c | 9 | 17 |
| b | 59,300,952 | 1,729,860,294 |
| e | 10 | 659 |
| f | 103 | 232 |
| i | 3 | 62 |
| h | 3 | 7 |
| p | 3 | 40 |
| n | 4 | 39 |
| 0 | 2 | 8 |
| 3 | 31,315 | 46,451 |
| r | 1 | 1 |
| u | 158 | 1,554 |
| v | 6 | 20 |
| y | 1 | 1 |
| z | 1 | 2 |
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Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
- TOTAL Number of Records with this field:
- 65,401,351 out of a total of 333,518,928 MARC records as of 1 Jan 2016
- Overall number of Holdings:
- 1,726,420,758
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| a | 67,139,687 | 1,813,688,060 |
| c | 11 | 19 |
| b | 55,941,421 | 1,654,225,384 |
| e | 10 | 42 |
| d | 1 | 1 |
| f | 103 | 231 |
| i | 3 | 62 |
| h | 3 | 7 |
| p | 3 | 41 |
| n | 4 | 39 |
| 0 | 2 | 8 |
| 3 | 31,284 | 44,820 |
| r | 1 | 1 |
| u | 160 | 1,610 |
| v | 6 | 19 |
| y | 1 | 1 |
| z | 1 | 2 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
- TOTAL Number of Records with this field:
- 58,586,238 out of a total of 333,518,928 MARC records as of 1 Jan 2015
- Overall number of Holdings:
- 1,627,509,648
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| a | 60,228,009 | 1,714,305,376 |
| c | 14 | 131 |
| b | 50,126,756 | 1,569,832,156 |
| e | 9 | 35 |
| d | 7 | 48 |
| f | 102 | 255 |
| i | 3 | 64 |
| h | 3 | 7 |
| p | 3 | 42 |
| n | 4 | 39 |
| 0 | 2 | 8 |
| 3 | 31,180 | 41,989 |
| r | 1 | 1 |
| u | 162 | 1,643 |
| v | 6 | 16 |
| y | 1 | 1 |
| z | 1 | 1 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
- TOTAL Number of Records with this field:
- 50,085,373 out of a total of 311,114,134 MARC records as of 1 Jan 2014
- Overall number of Holdings:
- 1,499,764,438
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| a | 51,642,166 | 1,585,748,497 |
| c | 16 | 176 |
| b | 42,587,192 | 1,460,288,785 |
| e | 9 | 27 |
| d | 15 | 60 |
| f | 96 | 191 |
| i | 3 | 61 |
| h | 3 | 7 |
| p | 3 | 41 |
| n | 4 | 38 |
| 0 | 2 | 9 |
| 3 | 31,228 | 38,470 |
| r | 1 | 1 |
| u | 161 | 1,675 |
| t | 1 | 1 |
| v | 6 | 14 |
| y | 1 | 1 |
| z | 1 | 1 |
Download this Data
Download is a text file of comma-separated values (CSV) made available under the ODC-By 1.0 license.
- TOTAL Number of Records with this field:
- 47,989,378 out of a total of 289,294,984 MARC records as of 1 Jan 2013
- Overall number of Holdings:
- 1,408,979,904
| Subfield | Number of Occurrences | Holdings |
|---|---|---|
| a | 49,546,407 | 1,494,735,158 |
| c | 18 | 191 |
| b | 41,832,586 | 1,379,931,837 |
| e | 8 | 15 |
| d | 17 | 64 |
| f | 92 | 168 |
| i | 3 | 59 |
| h | 3 | 7 |
| p | 3 | 42 |
| n | 4 | 37 |
| 0 | 2 | 9 |
| 3 | 28,062 | 30,906 |
| r | 1 | 1 |
| u | 166 | 1,701 |
| t | 2 | 2 |
| v | 6 | 11 |
| y | 1 | 1 |
| z | 2 | 2 |
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.