2020
- 1 team
- 1 brand
2018
- 2 teams
- 1 brand
2017
- 6 teams
- 4 brands
2016
- 9 teams
- 8 brands
2015
- 9 teams
- 5 brands
2014
- 8 teams
- 5 brands
2013
- 7 teams
- 4 brands
2012
- 6 teams
- 6 brands
2011
- 5 teams
- 5 brands
1988
- 1 team
- 1 brand
1986
- 1 team
- 1 brand
1985
- 1 team
- 1 brand
1984
- 4 teams
- 2 brands
1983
- 6 teams
- 2 brands
1982
- 8 teams
- 4 brands
1981-84
- 1 team
- 1 brand
1981
- 15 teams
- 5 brands
1980
- 15 teams
- 3 brands
1979
- 18 teams
- 6 brands
1978-80
- 1 team
- 1 brand
1978
- 15 teams
- 9 brands
1977
- 12 teams
- 6 brands
1976
- 13 teams
- 5 brands
1975
- 11 teams
- 7 brands
1974
- 7 teams
- 3 brands
1973-75
- 1 team
- 1 brand
1973
- 3 teams
- 2 brands
1972
- 1 team
- 1 brand
1971-73
- 1 team
- 1 brand
1971
- 1 team
- 2 brands
1969-70
- 1 team
- 1 brand
1968
- 1 team
- 1 brand
1967-68
- 1 team
- 1 brand
1967
- 1 team
- 1 brand
