Total entries: 235575 Books: 11518 Journal Articles: 182067 Proceedings Articles: 41990
| Year(s) | Total | Books & | Journal | Proceedings/ | |
| Entries | Proceedings | Articles | Edited book | ||
| Volumes | Articles | ||||
| Up to 1974 | 14794 | 41 | 14338 | 415 | |
| 1975 - 1980 | 33705 | 2067 | 25394 | 6244 | |
| 1981 - 1990 | 79325 | 4843 | 57881 | 16601 | |
| 1991 - 2000 | 92897 | 4138 | 72268 | 16491 | |
| 2001 | 8177 | 271 | 6477 | 1429 | |
| 2002 | 6192 | 142 | 5276 | 774 | |
| 2003 | 485 | 16 | 433 | 36 |
Journals indexed: 1416
