| Gender | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 123 | 192 | 260 | 285 | 300 | 264 | 208 | 241 | 241 | 209 |
| Female | 64 | 110 | 152 | 179 | 177 | 150 | 112 | 140 | 137 | 116 |
| Male | 59 | 82 | 108 | 106 | 123 | 114 | 96 | 101 | 104 | 93 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Female | 52.0% | 57.3% | 58.5% | 62.8% | 59.0% | 56.8% | 53.8% | 58.1% | 56.8% | 55.5% |
| Male | 48.0% | 42.7% | 41.5% | 37.2% | 41.0% | 43.2% | 46.2% | 41.9% | 43.2% | 44.5% |