2023-24
- 20 teams
- 8 brands
2022-23
- 20 teams
- 10 brands
2021-22
- 20 teams
- 9 brands
2020-21
- 20 teams
- 10 brands
2019-20
- 20 teams
- 10 brands
2018-19
- 20 teams
- 10 brands
2017-18
- 20 teams
- 9 brands
2016-17
- 20 teams
- 8 brands
2015-16
- 20 teams
- 10 brands
2014-15
- 20 teams
- 11 brands
2013-14
- 20 teams
- 12 brands
2012-13
- 20 teams
- 14 brands
2011-12
- 20 teams
- 15 brands
2010-11
- 20 teams
- 13 brands
2009-10
- 20 teams
- 15 brands
2008-09
- 20 teams
- 13 brands
2007-08
- 20 teams
- 13 brands
2006-07
- 20 teams
- 15 brands
2005-06
- 20 teams
- 12 brands
2004-05
- 20 teams
- 12 brands
2003-04
- 20 teams
- 12 brands
2002-03
- 20 teams
- 10 brands
2001-02
- 20 teams
- 11 brands
2000-01
- 20 teams
- 10 brands
1999-00
- 20 teams
- 12 brands
1998-99
- 20 teams
- 12 brands
1997-98
- 20 teams
- 11 brands
1996-97
- 22 teams
- 12 brands
1995-96
- 22 teams
- 11 brands
1994-95
- 20 teams
- 10 brands
1993-94
- 20 teams
- 12 brands
1992-93
- 20 teams
- 15 brands
1991-92
- 20 teams
- 15 brands
1990-91
- 20 teams
- 15 brands
1989-90
- 17 teams
- 10 brands
1988-89
- 20 teams
- 11 brands
1987-88
- 16 teams
- 7 brands
1986-87
- 18 teams
- 8 brands
1985-86
- 16 teams
- 7 brands
1984-85
- 14 teams
- 7 brands
1983-84
- 16 teams
- 5 brands
1982-83
- 16 teams
- 6 brands
1981-82
- 16 teams
- 5 brands
1980-81
- 15 teams
- 5 brands
1979-80
- 14 teams
- 7 brands
1978-79
- 12 teams
- 5 brands
1977-78
- 13 teams
- 4 brands
1976-77
- 9 teams
- 4 brands
1975-76
- 16 teams
- 5 brands
1974-75
- 15 teams
- 4 brands
1973-74
- 8 teams
- 3 brands
1972-73
- 8 teams
- 3 brands
1971-72
- 6 teams
- 2 brands
1970-71
- 8 teams
- 4 brands
1969-70
- 5 teams
- 4 brands
1968-69
- 4 teams
- 3 brands
1967-68
- 5 teams
- 4 brands
1966-67
- 2 teams
- 2 brands
1965-66
- 6 teams
- 3 brands
1964-65
- 3 teams
- 2 brands
1963-72
- 1 team
- 1 brand
1963-64
- 4 teams
- 1 brand
1962-63
- 5 teams
- 3 brands
1961-62
- 4 teams
- 2 brands
1960-62
- 1 team
- 1 brand
1960-61
- 8 teams
- 3 brands
1959-60
- 6 teams
- 2 brands
1958-59
- 4 teams
- 1 brand
1957-58
- 4 teams
- 1 brand
1956-57
- 7 teams
- 2 brands
1955-56
- 5 teams
- 2 brands
1954-55
- 2 teams
- 1 brand
1953-54
- 3 teams
- 1 brand
1952-53
- 3 teams
- 1 brand
1951-52
- 3 teams
- 2 brands
1950-51
- 5 teams
- 2 brands
1949-50
- 3 teams
- 1 brand
1947-48
- 5 teams
- 1 brand
1946-47
- 2 teams
- 1 brand
1945-46
- 3 teams
- 1 brand
1944-45
- 2 teams
- 1 brand
1943-44
- 7 teams
- 1 brand
1942-43
- 3 teams
- 1 brand
1941-42
- 4 teams
- 1 brand
1940-41
- 3 teams
- 1 brand
1939-40
- 6 teams
- 1 brand
1935-36
- 2 teams
- 1 brand
1934-35
- 3 teams
- 1 brand
1933-34
- 1 team
- 1 brand
1931-32
- 2 teams
- 1 brand
1929-30
- 1 team
- 1 brand
1928-29
- 10 teams
- 1 brand
1928
- 2 teams
- 1 brand
1927
- 3 teams
- 1 brand
1926
- 1 team
- 1 brand
1925
- 2 teams
- 1 brand
1924
- 3 teams
- 1 brand
1923
- 1 team
- 1 brand
1922
- 2 teams
- 1 brand
1921
- 2 teams
- 1 brand
1920
- 2 teams
- 1 brand
1919
- 3 teams
- 1 brand
1918
- 2 teams
- 1 brand
1915
- 2 teams
- 1 brand
1914
- 2 teams
- 1 brand
1913
- 1 team
- 1 brand
1910-11
- 1 team
- 1 brand
1910
- 2 teams
- 1 brand
1909-10
- 1 team
- 1 brand
1909
- 1 team
- 1 brand
1908-16
- 1 team
- 1 brand
1905
- 1 team
- 1 brand
1903
- 1 team
- 1 brand
1901
- 1 team
- 1 brand
