| % of | % of | |||||||
| Year | Male | % | Total | Female | % | Total | Total | % |
| 1968 | 1 | 1.96 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1970 | 1 | 1.96 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1973 | 1 | 1.96 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1975 | 1 | 1.96 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1976 | 0 | 0 | 0 | 1 | 3.45 | 1.25 | 1 | 1.25 |
| 1978 | 2 | 3.9 | 2.5 | 0 | 0 | 0 | 2 | 2.5 |
| 1979 | 2 | 3.9 | 2.5 | 0 | 0 | 0 | 2 | 2.5 |
| 1981 | 1 | 2 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1984 | 0 | 0 | 0 | 1 | 3.45 | 1.25 | 1 | 1.25 |
| 1985 | 2 | 3.9 | 2.5 | 0 | 0 | 0 | 2 | 2.5 |
| 1986 | 1 | 2 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1988 | 1 | 2 | 1.25 | 1 | 3.45 | 1.25 | 2 | 2.5 |
| 1989 | 2 | 3.9 | 2.5 | 0 | 0 | 0 | 2 | 2.5 |
| 1991 | 1 | 2 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1992 | 1 | 2 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1994 | 1 | 2 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1995 | 1 | 2 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1996 | 1 | 2 | 1.25 | 0 | 0 | 0 | 1 | 1.25 |
| 1997 | 2 | 3.9 | 2.5 | 0 | 0 | 0 | 2 | 2.5 |
| 1998 | 1 | 2 | 1.25 | 1 | 3.45 | 1.25 | 2 | 2.5 |
| 1999 | 2 | 3.9 | 2.5 | 0 | 0 | 0 | 2 | 2.5 |
| 2000 | 2 | 3.9 | 2.5 | 1 | 3.45 | 1.25 | 3 | 3.75 |
| 2001 | 2 | 3.9 | 2.5 | 2 | 6.9 | 2.5 | 4 | 5 |
| 2002 | 2 | 3.9 | 2.5 | 3 | 10.3 | 3.75 | 5 | 6.25 |
| 2003 | 2 | 3.9 | 2.5 | 0 | 0 | 0 | 2 | 2.5 |
| 2004 | 2 | 3.9 | 2.5 | 3 | 10.3 | 3.75 | 5 | 6.25 |
| 2005 | 2 | 3.9 | 2.5 | 4 | 13.8 | 5 | 6 | 7.5 |
| 2006 | 3 | 5.9 | 3.75 | 1 | 3.45 | 1.25 | 4 | 5 |
| 2007 | 2 | 3.9 | 2.5 | 1 | 3.45 | 1.25 | 3 | 3.75 |
| 2008 | 0 | 0 | 0 | 2 | 6.9 | 2.5 | 2 | 2.5 |
| 2009 | 2 | 3.9 | 2.5 | 0 | 0 | 0 | 2 | 2.5 |
| 2010 | 4 | 7.8 | 5 | 2 | 6.9 | 2.5 | 6 | 7.5 |
| 2011 | 0 | 0 | 0 | 2 | 6.9 | 2.5 | 2 | 2.5 |
| 2012 | 3 | 5.9 | 3.75 | 4 | 13.8 | 5 | 7 | 8.75 |
| Total | 51 | 100 | 63.8 | 29 | 100 | 36.3 | 80 | 100 |