2022
- 5 teams
2021
- 3 teams
2020
- 3 teams
2019
- 2 teams
2018
- 2 teams
2017-18
- 3 teams
2017
- 2 teams
2016-17
- 4 teams
2016
- 6 teams
2015-16
- 3 teams
2015
- 8 teams
2014-15
- 3 teams
2014
- 4 teams
2013-14
- 2 teams
2013
- 10 teams
2012-13
- 3 teams
2012
- 9 teams
2011-12
- 3 teams
2011
- 9 teams
2010-11
- 1 team
2010
- 9 teams
2009-10
- 2 teams
2009
- 10 teams
2008-09
- 1 team
2008
- 7 teams
2007
- 4 teams
2005-06
- 3 teams
2005
- 2 teams
2004-05
- 2 teams
2004
- 6 teams
2003
- 7 teams
2002
- 8 teams
2001
- 9 teams
2000
- 9 teams
1999
- 10 teams
1998
- 10 teams
1997-98
- 3 teams
1997
- 12 teams
1996-97
- 4 teams
1996
- 6 teams
1995-96
- 3 teams
1995
- 4 teams
1994-95
- 4 teams
1994
- 3 teams
1993-94
- 3 teams
1993
- 4 teams
1992-93
- 1 team
1992
- 5 teams
1991
- 3 teams
1990
- 4 teams
1989
- 4 teams
1988
- 2 teams
1987
- 3 teams
1986
- 3 teams
1983
- 1 team
1982
- 1 team
1980
- 1 team
1971
- 1 team
