2022
- 24 teams
- 20 brands
2019
- 22 teams
- 13 brands
2017
- 15 teams
- 12 brands
2015
- 14 teams
- 7 brands
2013
- 15 teams
- 7 brands
2012
- 16 teams
- 7 brands
2010
- 15 teams
- 4 brands
2008
- 13 teams
- 3 brands
2006
- 13 teams
- 5 brands
2004
- 15 teams
- 9 brands
2002
- 12 teams
- 7 brands
2000
- 11 teams
- 9 brands
1998
- 10 teams
- 8 brands
1996
- 11 teams
- 7 brands
1994
- 11 teams
- 7 brands
1992
- 12 teams
- 5 brands
1990
- 6 teams
- 2 brands
1988
- 4 teams
- 3 brands
1986
- 7 teams
- 4 brands
1984
- 4 teams
- 2 brands
1982
- 3 teams
- 3 brands
1980
- 2 teams
- 2 brands
1978
- 2 teams
- 1 brand
1976
- 1 team
- 1 brand
1974
- 1 team
- 1 brand
1972
- 2 teams
- 1 brand
