| Gender | Year | |||||||||
| 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | |
| Total | 35,751 | 41,592 | 47,456 | 53,445 | 59,947 | 65,362 | 71,752 | 77,065 | 78,781 | 82,885 |
| Female | 15,017 | 17,627 | 20,093 | 22,737 | 25,282 | 27,686 | 30,360 | 32,661 | 33,391 | 35,228 |
| Male | 20,734 | 23,965 | 27,363 | 30,708 | 34,665 | 37,676 | 41,392 | 44,404 | 45,390 | 47,657 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Female | 42.0% | 42.4% | 42.3% | 42.5% | 42.2% | 42.4% | 42.3% | 42.4% | 42.4% | 42.5% |
| Male | 58.0% | 57.6% | 57.7% | 57.5% | 57.8% | 57.6% | 57.7% | 57.6% | 57.6% | 57.5% |