| Gender | Year | |||||||||
| 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | |
| Total | 31,694 | 35,788 | 41,613 | 47,488 | 53,482 | 60,003 | 65,471 | 71,909 | 77,334 | 79,387 |
| Female | 13,219 | 15,027 | 17,635 | 20,102 | 22,753 | 25,307 | 27,721 | 30,415 | 32,768 | 33,636 |
| Male | 18,475 | 20,761 | 23,978 | 27,386 | 30,729 | 34,696 | 37,750 | 41,494 | 44,566 | 45,751 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Female | 41.7% | 42.0% | 42.4% | 42.3% | 42.5% | 42.2% | 42.3% | 42.3% | 42.4% | 42.4% |
| Male | 58.3% | 58.0% | 57.6% | 57.7% | 57.5% | 57.8% | 57.7% | 57.7% | 57.6% | 57.6% |