| 1988 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 1989 | 1 | 3 | 4 | 5 | 6 | ||
| 1990 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 1991 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 1992 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 1993 | 1 | 2 | 3 | ||||
| 1994 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 1995 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 1996 | 1 | 2 | 3 | 5 | 6 | ||
| 1997 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 1998 | 1 | 2 | 3 | ||||
| 1999 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2000 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2001 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2002 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2003 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2004 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2005 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2006 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2007 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2008 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2009 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2010 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2011 | 1 | 2 | 3 | 4 | 5 | 6 | |
| 2012 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| 2017 | 2 | 3 | 4 | 5 | 6 |
