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Crossref Stats Page: Updated on Sep 16, 2019
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| MetaData Deposit |
| Total Records in Database | 108,115,737 |
| Total Prefixes | 14,641 |
| Number of Journals | 71,149 |
| Number of Books | 1,365,758 |
| Number of Conference Proceedings | 67,673 |
| Number of Journal DOIs | 78,978,025 |
| Number of Book DOIs | 15,944,072 |
| Number of Conference DOIs | 5,995,882 |
| Number of Components | 3,913,089 |
| Number of Standards Titles | 392,705 |
| Number of Standards DOIs | 308,653 |
| Number of Databases | 27,077 |
| Number of Database DOIs | 1,854,902 |
| Number of Articles with References Deposited | 44,250,907 |
| Number of Cited-By Links | 952,104,933 |
| Number of DOIs with at least one cited-by link (UNDER CONSTRUCTION) | 0 |
| Number of Journal Title Level DOIs | 32,308 |
| Number of Book Title Level DOIs | 1,386,385 |
| Number of ConfProc Title Level DOIs | 20,830 |
| Number of Dissertation Title Level DOIs | 285,904 |
| Number of Report Title Level DOIs | 615,204 |
| Number of Standards Title Level DOIs | 308,088 |
| Number of Database Title Level DOIs | 23,869 |
| Number of Unique DOIs with FundRef data | 2,947,660 |
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Monthly Deposit Data
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| Month | Total Records
Added | Total Current
Deposits | Total BackFile
Deposits | Total Records
Updated |
| (2016) | 6,125,807 | 3,971,136 | 2,154,671 | 26,670,973 |
| (2017) | 7,384,818 | 5,109,075 | 2,275,743 | 31,278,043 |
| (2018) | 8,265,918 | 6,240,571 | 2,025,347 | 33,609,916 |
| Aug | 874,231 | 640,770 | 233,461 | 3,333,069 |
| Sep | 809,045 | 686,085 | 122,960 | 2,553,305 |
| Oct | 849,490 | 737,221 | 112,269 | 3,279,579 |
| Nov | 827,655 | 705,722 | 121,933 | 3,434,929 |
| Dec | 780,544 | 671,698 | 108,846 | 2,809,222 |
| Jan | 837,106 | 643,227 | 193,879 | 3,709,404 |
| Feb | 739,634 | 600,221 | 139,413 | 2,930,021 |
| Mar | 883,267 | 709,834 | 173,433 | 3,394,481 |
| Apr | 911,489 | 699,395 | 212,094 | 3,526,819 |
| May | 1,022,569 | 765,045 | 257,524 | 4,071,354 |
| Jun | 858,438 | 701,512 | 156,926 | 4,128,236 |
| Jul | 907,844 | 740,353 | 167,491 | 3,389,352 |
| Aug | 923,789 | 722,202 | 201,587 | 4,967,915 |
| Sep | 426,626 | 330,658 | 95,968 | 2,934,217 |
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Monthly Query Data
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| Month | Total MetaData
Queries | Total Matches | % | % by group
( Lib Pub Aflt ) | Total DOI
Queries | Total Matches | % |
| (2016) | 2,132,786,834 | 741,439,410 | 35% | 59% | 46% | 46% | 1,082,427,347 | 1,001,605,891 | 93% |
| (2017) | 2,104,222,315 | 726,991,604 | 35% | 51% | 40% | 40% | 1,522,141,093 | 1,397,871,168 | 92% |
| (2018) | 2194087319 | 754,970,923 | 34% | 51% | 43% | 43% | 1,823,393,379 | 1,738,885,218 | 95% |
| Aug | 183,486,679 | 64,678,391 | 35% | 49% | 45% | 76% | 149,760,753 | 144,149,658 | 96% |
| Sep | 175,579,742 | 55,239,393 | 31% | 52% | 38% | 73% | 126,702,532 | 120,759,408 | 95% |
| Oct | 186,639,131 | 65,918,580 | 35% | 56% | 42% | 73% | 156,798,578 | 149,988,861 | 96% |
| Nov | 182,717,306 | 63,494,727 | 35% | 55% | 44% | 74% | 195,014,038 | 182,442,193 | 94% |
| Dec | 127,351,473 | 56,427,049 | 44% | 55% | 48% | 72% | 177,168,246 | 170,607,392 | 96% |
| Jan | 126,964,517 | 63,996,541 | 50% | 58% | 42% | 60% | 127,096,055 | 119,483,241 | 94% |
| Feb | 141,564,965 | 77,731,760 | 55% | 59% | 50% | 68% | 131,022,077 | 123,932,719 | 95% |
| Mar | 128,308,241 | 68,458,714 | 53% | 59% | 53% | 67% | 155,800,023 | 147,005,057 | 94% |
| Apr | 149,186,036 | 68,873,984 | 46% | 56% | 58% | 68% | 149,987,175 | 141,707,405 | 94% |
| May | 172,624,838 | 68,086,946 | 39% | 54% | 61% | 66% | 150,178,136 | 141,697,075 | 94% |
| Jun | 129,897,361 | 52,710,691 | 41% | 55% | 51% | 68% | 263,675,557 | 214,375,451 | 81% |
| Jul | 124,518,873 | 58,381,317 | 47% | 52% | 52% | 72% | 152,592,199 | 145,168,553 | 95% |
| Aug | 141,232,762 | 59,310,359 | 42% | 49% | 53% | 69% | 148,616,500 | 141,484,675 | 95% |
| Sep | 72,721,963 | 27,796,760 | 38% | 49% | 44% | 70% | 74,294,527 | 71,043,077 | 96% |
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Monthly ORCID Auto-Update Data
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| Month | Authors Granting
Permission | Works Added to
Authors Records |
| Aug | 20,994 | 77,959 |
| Sep | 21,187 | 71,816 |
| Oct | 24,968 | 86,024 |
| Nov | 24,912 | 85,735 |
| Dec | 22,683 | 79,642 |
| Jan | 28,119 | 94,440 |
| Feb | 25,812 | 90,182 |
| Mar | 26,339 | 95,016 |
| Apr | 22,211 | 92,117 |
| May | 37,513 | 117,372 |
| Jun | 25,544 | 98,685 |
| Jul | 30,065 | 114,941 |
| Aug | 36,468 | 117,758 |
| Sep | 3,270 | 37,292 |
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ORCID Totals
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| Statistic | Total |
| Total orcid/article pairs | 4,949,476 |
| Total unique orcids | 1,871,511 |
| Total works pushed | 2,386,328 |
| Authors granting | 789,332 |
| Authors denying | 510,017 |
| Authors not responding | 584,046 |
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