| Donor Gender | Year | |||||||||
| 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | |
| Total | 2,851 | 3,009 | 3,388 | 3,666 | 3,928 | 4,400 | 4,670 | 5,427 | 6,002 | 6,233 |
| Female | 1,610 | 1,668 | 1,968 | 2,134 | 2,246 | 2,543 | 2,717 | 3,084 | 3,529 | 3,636 |
| Male | 1,241 | 1,341 | 1,420 | 1,532 | 1,682 | 1,857 | 1,953 | 2,343 | 2,473 | 2,597 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Female | 56.5% | 55.4% | 58.1% | 58.2% | 57.2% | 57.8% | 58.2% | 56.8% | 58.8% | 58.3% |
| Male | 43.5% | 44.6% | 41.9% | 41.8% | 42.8% | 42.2% | 41.8% | 43.2% | 41.2% | 41.7% |