2024-25
- 12 teams
- 6 brands
2023-24
- 12 teams
- 8 brands
2022-23
- 12 teams
- 9 brands
2021-22
- 13 teams
- 8 brands
2020-21
- 12 teams
- 8 brands
2019-20
- 12 teams
- 8 brands
2018-19
- 12 teams
- 8 brands
2017-18
- 12 teams
- 5 brands
2016-17
- 12 teams
- 6 brands
2015-16
- 12 teams
- 7 brands
2014-15
- 11 teams
- 5 brands
2013-14
- 11 teams
- 6 brands
2012-13
- 12 teams
- 5 brands
2011-12
- 8 teams
- 5 brands
2010-11
- 7 teams
- 4 brands
2009-10
- 9 teams
- 4 brands
2008-09
- 8 teams
- 5 brands
2007-08
- 11 teams
- 4 brands
2006-07
- 6 teams
- 2 brands
2005-06
- 5 teams
- 3 brands
2004-05
- 6 teams
- 2 brands
2003-04
- 4 teams
- 2 brands
2002-03
- 8 teams
- 5 brands
2001-02
- 8 teams
- 6 brands
2000-01
- 13 teams
- 6 brands
1999-00
- 6 teams
- 4 brands
1998-99
- 6 teams
- 5 brands
1997-98
- 7 teams
- 6 brands
1996-97
- 3 teams
- 3 brands
1995-96
- 7 teams
- 3 brands
1994-95
- 5 teams
- 2 brands
1993-94
- 4 teams
- 2 brands
1992-93
- 4 teams
- 3 brands
1991
- 2 teams
- 1 brand
1990
- 3 teams
- 1 brand
1989
- 2 teams
- 2 brands
1988
- 3 teams
- 2 brands
1987
- 2 teams
- 2 brands
1986
- 3 teams
- 1 brand
1985
- 1 team
- 1 brand
1982
- 1 team
- 1 brand
1981
- 1 team
- 1 brand
1979
- 3 teams
- 3 brands
1978-79
- 1 team
- 1 brand
1978
- 4 teams
- 3 brands
1974
- 2 teams
- 1 brand
1973
- 3 teams
- 1 brand
1969
- 12 teams
- 1 brand
1968
- 2 teams
- 1 brand
1966
- 1 team
- 1 brand
1965
- 1 team
- 1 brand
1964
- 12 teams
- 1 brand
1963
- 7 teams
- 1 brand
1958
- 1 team
- 1 brand
1957-58
- 9 teams
- 1 brand
1933-34
- 1 team
- 1 brand
