2023
- 2 teams
2022
- 2 teams
2021
- 3 teams
2020
- 1 team
2017
- 1 team
2015
- 1 team
2014
- 2 teams
2013
- 2 teams
2012-13
- 2 teams
2011-12
- 4 teams
2011
- 2 teams
2010-11
- 5 teams
2010
- 3 teams
2009-10
- 5 teams
2009
- 3 teams
2008-09
- 4 teams
2008
- 3 teams
2007-08
- 5 teams
2007
- 3 teams
2006-07
- 8 teams
2006
- 3 teams
2005-06
- 6 teams
2005
- 3 teams
2004-05
- 6 teams
2004
- 3 teams
2003-04
- 8 teams
2003
- 3 teams
2002-03
- 10 teams
2002
- 3 teams
2001-02
- 8 teams
2001
- 3 teams
2000-01
- 8 teams
2000
- 2 teams
1999-00
- 11 teams
1999
- 3 teams
1998-99
- 14 teams
1997-98
- 14 teams
1996-97
- 15 teams
1996
- 6 teams
1995-96
- 15 teams
1995
- 1 team
1994-95
- 19 teams
1994
- 3 teams
1993-94
- 14 teams
1992-93
- 6 teams
1992
- 1 team
1991-92
- 4 teams
1991
- 1 team
1990-91
- 4 teams
1989-90
- 3 teams
1988
- 1 team
1987-88
- 1 team
1987
- 1 team
1980
- 1 team
1979
- 1 team
