| Gender | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Total | 12,049 | 13,912 | 14,887 | 13,027 | 12,627 | 12,664 | 12,728 | 12,472 | 12,198 | 12,230 |
| Female | 5,120 | 5,873 | 6,288 | 5,554 | 5,229 | 5,110 | 5,126 | 4,932 | 4,850 | 4,808 |
| Male | 6,929 | 8,039 | 8,599 | 7,473 | 7,398 | 7,554 | 7,602 | 7,540 | 7,348 | 7,422 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| Female | 42.5% | 42.2% | 42.2% | 42.6% | 41.4% | 40.4% | 40.3% | 39.5% | 39.8% | 39.3% |
| Male | 57.5% | 57.8% | 57.8% | 57.4% | 58.6% | 59.6% | 59.7% | 60.5% | 60.2% | 60.7% |