| Gender | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 230 | 254 | 326 | 343 | 447 | 662 | 899 | 879 | 886 | 999 |
| Female | 96 | 110 | 134 | 141 | 212 | 301 | 393 | 387 | 372 | 439 |
| Male | 134 | 144 | 192 | 202 | 235 | 361 | 506 | 492 | 514 | 560 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Female | 41.7% | 43.3% | 41.1% | 41.1% | 47.4% | 45.5% | 43.7% | 44.0% | 42.0% | 43.9% |
| Male | 58.3% | 56.7% | 58.9% | 58.9% | 52.6% | 54.5% | 56.3% | 56.0% | 58.0% | 56.1% |