| Gender | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
| Total | 59,828 | 65,207 | 71,558 | 76,797 | 78,359 | 81,739 | 85,213 | 88,715 | 92,845 | 97,248 |
| Female | 25,231 | 27,625 | 30,278 | 32,553 | 33,224 | 34,752 | 35,991 | 37,149 | 38,804 | 40,689 |
| Male | 34,597 | 37,582 | 41,280 | 44,244 | 45,135 | 46,987 | 49,222 | 51,566 | 54,041 | 56,559 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Female | 42.2% | 42.4% | 42.3% | 42.4% | 42.4% | 42.5% | 42.2% | 41.9% | 41.8% | 41.8% |
| Male | 57.8% | 57.6% | 57.7% | 57.6% | 57.6% | 57.5% | 57.8% | 58.1% | 58.2% | 58.2% |