| 2009 |  |
| 2008 | |
| 2007 | |
| 2006 | |
| 2005 | |
| 2004 | |
| 2003 | |
| 2002 | |
| 2001 | |
| 2000 | |
| 1999 | |
| 1998 | |
| 1997 | |
| 1996 | |
| 1995 | |
| 1994 | |
| 1993 | |
| 1992 | |
| 1991 | |
| 1990 |  |
| 1989 | |
| 1988 |  |
| 1987 | |
| 1986 |   |
| 2009 | 1 | 1 | | | | | | | | | | | |
| 2008 | - | | | | | | | | | | | | |
| 2007 | - | | | | | | | | | | | | |
| 2006 | - | | | | | | | | | | | | |
| 2005 | - | | | | | | | | | | | | |
| 2004 | - | | | | | | | | | | | | |
| 2003 | - | | | | | | | | | | | | |
| 2002 | - | | | | | | | | | | | | |
| 2001 | - | | | | | | | | | | | | |
| 2000 | - | | | | | | | | | | | | |
| 1999 | - | | | | | | | | | | | | |
| 1998 | - | | | | | | | | | | | | |
| 1997 | - | | | | | | | | | | | | |
| 1996 | - | | | | | | | | | | | | |
| 1995 | - | | | | | | | | | | | | |
| 1994 | - | | | | | | | | | | | | |
| 1993 | - | | | | | | | | | | | | |
| 1992 | - | | | | | | | | | | | | |
| 1991 | - | | | | | | | | | | | | |
| 1990 | 4 | 4 | | | | | | | | | | | |
| 1989 | - | | | | | | | | | | | | |
| 1988 | 2 | | 2 | | | | | | | | | | |
| 1987 | - | | | | | | | | | | | | |
| 1986 | 2 | | | | | | 1 | 1 | | | | | |
| | 9 | | | | | | | | | | | | |