| 1998/99 | 1999/00 | 2000/01 | 2001/02 | 2002/03 | |
| Volumes | |||||
| Monograph volumes added | 9,562 | 11,262 | 8,822 | 11,282 | 6,203 |
| Serial and bound periodical volumes added | 3,840 | 3,473 | 3,983 | 4,617 | 1,705 |
| SUBTOTAL | 13,402 | 14,735 | 12,805 | 15,899 | 7,908 |
| Volumes withdrawn | 2,325 | 1,730 | 42,5541 | 177 | 74 |
| TOTAL CATALOGED VOLS | 832,385 | 845,392 | 815,643 | 831,365 | 839,199 |
| Government documents | 447,963 | 458,800 | 462,987 | 467,963 | 470,417 |
| TOTAL NUMBER OF VOLS | 1,282,023 | 1,305,602 | 1,279,380 | 1,299,328 | 1,309,616 |
| Non-book materials | |||||
| Sound recordings | 17,365 | 17,429 | 17,661 | 17,753 | 17,754 |
| Videocassettes and DVDs | 2,092 | 2,278 | 2,351 | 2,406 | 2,410 |
| Audiocassettes | 869 | 870 | 930 | 958 | 959 |
| Multimedia, CDs DVDs | 1,144 | 1,154 | 1,309 | 1,314 | 1,440 |
| TOTAL CATALOGED NON-BOOK MATERIALS | 21,470 | 21,731 | 22,251 | 22,431 | 22,563 |
| Microform pieces | 1,603,748 | 1,624,712 | 1,639,385 | 1,650,882 | 1,654,030 |
| Archives and manuscripts (in cubic feet) | 4,380 | 4,690 | 4,908 | 5,693 | 5,921 |
| Print and serial subscriptions | 4,213 | 4,167 | 4,112 | 4,025 | 3,738 |
| Electronic Subscriptions | NA | NA | 15,885 | 16,000 | 17,000 |
1 Includes items withdrawn following the 1998/1999 Inventory.