| 15,339,775 | 68.74% | preserved and publicly accessible (bright) | |
| 3,288,904 | 14.74% | preserved but not publicly accessible (dark) | |
| 3,687,371 | 16.53% | no known independent preservation | |
| 22,316,050 | total |
| Release Type | Total Count | Coverage |
|---|---|---|
| article-journal | 18,914,615 |
|
| article | 3,378,694 |
|
| paper-conference | 22,741 |
|