2021
- 10 teams
- 7 brands
2019
- 12 teams
- 6 brands
2016
- 15 teams
- 8 brands
2015
- 11 teams
- 5 brands
2011
- 12 teams
- 8 brands
2007
- 12 teams
- 8 brands
2004
- 10 teams
- 8 brands
2001
- 11 teams
- 8 brands
1999
- 11 teams
- 13 brands
1997
- 9 teams
- 8 brands
1995
- 12 teams
- 10 brands
1993
- 12 teams
- 10 brands
1991
- 10 teams
- 11 brands
1989
- 6 teams
- 5 brands
1987
- 9 teams
- 10 brands
1983
- 4 teams
- 3 brands
1979
- 7 teams
- 4 brands
1975
- 3 teams
- 1 brand
