2022
- 4 teams
2017
- 1 team
2011-12
- 2 teams
2008-09
- 3 teams
2007-08
- 2 teams
2006-07
- 2 teams
2005-06
- 2 teams
2004-05
- 1 team
2002-03
- 4 teams
2001-02
- 4 teams
2000-01
- 4 teams
1999-00
- 4 teams
1998-99
- 1 team
1995-96
- 5 teams
1994-95
- 6 teams
1992-93
- 2 teams
1988-89
- 3 teams
1987-88
- 4 teams
1985-86
- 2 teams
1984-85
- 3 teams
1983-84
- 4 teams
1982-83
- 4 teams
1981-82
- 4 teams
1977
- 1 team
1976
- 1 team
1974-75
- 1 team
1969-70
- 1 team
1968-69
- 1 team
