2012
- 1 team
2011-12
- 3 teams
2011
- 3 teams
2010-11
- 7 teams
2010
- 4 teams
2009-10
- 6 teams
2009
- 4 teams
2008-09
- 9 teams
2008
- 3 teams
2007-08
- 4 teams
2007
- 4 teams
2006-07
- 7 teams
2006
- 2 teams
2005-06
- 8 teams
2005
- 2 teams
2004-05
- 7 teams
2004
- 2 teams
2003-04
- 7 teams
2003
- 1 team
2002-03
- 5 teams
2001-02
- 5 teams
2001
- 5 teams
2000-01
- 8 teams
2000
- 7 teams
1999-00
- 15 teams
1999
- 7 teams
1998-99
- 15 teams
1998
- 12 teams
1997-98
- 16 teams
1997
- 6 teams
1996-97
- 15 teams
1996
- 6 teams
1995-96
- 8 teams
1994-95
- 3 teams
1993-94
- 1 team
1993
- 2 teams
1986
- 1 team
1980
- 1 team
