| Donor Gender | Year | |||||||||
| 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | |
| Total | 1,243 | 1,360 | 1,289 | 1,291 | 1,322 | 1,462 | 1,628 | 1,701 | 1,814 | 1,870 |
| Female | 412 | 473 | 463 | 452 | 472 | 523 | 578 | 637 | 624 | 627 |
| Male | 831 | 887 | 826 | 839 | 850 | 939 | 1,050 | 1,064 | 1,190 | 1,243 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Female | 33.1% | 34.8% | 35.9% | 35.0% | 35.7% | 35.8% | 35.5% | 37.4% | 34.4% | 33.5% |
| Male | 66.9% | 65.2% | 64.1% | 65.0% | 64.3% | 64.2% | 64.5% | 62.6% | 65.6% | 66.5% |