| Document Types | Record Count |
| Article | 449,397 |
| Proceeding Paper | 44,082 |
| Review Article | 29,603 |
| Book Chapters | 18,167 |
| Editorial Material | 13,239 |
| Early Access | 6041 |
| Book Review | 2273 |
| News Item | 1642 |
| … | … |
| Record Review | 1 |