2024
- 16 teams
- 11 brands
2023
- 16 teams
- 11 brands
2022
- 16 teams
- 10 brands
2021
- 16 teams
- 10 brands
2020
- 16 teams
- 11 brands
2019
- 16 teams
- 10 brands
2018
- 12 teams
- 9 brands
2017
- 12 teams
- 9 brands
2016
- 12 teams
- 9 brands
2015
- 11 teams
- 7 brands
2014
- 10 teams
- 7 brands
2013
- 11 teams
- 7 brands
2012
- 12 teams
- 5 brands
2011
- 11 teams
- 6 brands
2010
- 11 teams
- 6 brands
2009
- 10 teams
- 5 brands
2008
- 11 teams
- 7 brands
2007
- 9 teams
- 7 brands
2006
- 9 teams
- 6 brands
2005
- 10 teams
- 6 brands
2004
- 10 teams
- 6 brands
2003
- 10 teams
- 7 brands
2002
- 10 teams
- 6 brands
2001
- 9 teams
- 7 brands
2000
- 8 teams
- 5 brands
1999
- 8 teams
- 5 brands
1998
- 10 teams
- 5 brands
1997
- 7 teams
- 6 brands
1996
- 6 teams
- 5 brands
1995
- 7 teams
- 5 brands
1994
- 6 teams
- 5 brands
1993
- 5 teams
- 3 brands
1992
- 3 teams
- 4 brands
1991
- 4 teams
- 2 brands
1990
- 1 team
- 2 brands
1989
- 2 teams
- 2 brands
1988
- 5 teams
- 1 brand
1987
- 3 teams
- 1 brand
1986
- 1 team
- 1 brand
1985
- 1 team
- 1 brand
1984
- 2 teams
- 1 brand
1983
- 2 teams
- 2 brands
1982
- 1 team
- 1 brand
1981
- 2 teams
- 1 brand
1980
- 2 teams
- 2 brands
1979
- 3 teams
- 2 brands
1978
- 2 teams
- 1 brand
1977
- 1 team
- 1 brand
1976
- 2 teams
- 1 brand
1975
- 1 team
- 1 brand
1974
- 1 team
- 1 brand
1973
- 1 team
- 1 brand
1972
- 3 teams
- 1 brand
1971
- 2 teams
- 2 brands
1970
- 1 team
- 1 brand
1965
- 1 team
- 1 brand
