1991-92
- 5 teams
- 4 brands
1990-91
- 13 teams
- 4 brands
1989-90
- 16 teams
- 3 brands
1988-89
- 10 teams
- 1 brand
1987-88
- 5 teams
- 2 brands
1986-87
- 4 teams
- 1 brand
1985-86
- 8 teams
- 2 brands
1984-85
- 9 teams
- 2 brands
1983-84
- 12 teams
- 1 brand
1982-83
- 3 teams
- 2 brands
1981-82
- 4 teams
- 2 brands
1980-81
- 4 teams
- 2 brands
1979-80
- 2 teams
- 2 brands
1978-79
- 3 teams
- 2 brands
1977-78
- 7 teams
- 2 brands
1976-77
- 10 teams
- 3 brands
1975-76
- 5 teams
- 2 brands
1970-75
- 7 teams
- 1 brand
1967-68
- 1 team
- 1 brand
1960-70
- 5 teams
- 1 brand
1955-60
- 2 teams
- 1 brand
1950-55
- 4 teams
- 1 brand
1946-50
- 4 teams
- 1 brand
1938-41
- 1 team
- 1 brand
1936-41
- 5 teams
- 1 brand
