| Year | Champion |
| 1945 | |
| 1946 | |
| 1947 | |
| 1948 | |
| 1949 | |
| 1950 | |
| 1951 | |
| 1952 | |
| 1953 | |
| 1954 | |
| 1955 | |
| 1956 | |
| 1957 | |
| 1958 | |
| 1959 | |
| 1960 | |
| 1961 | |
| 1962 | |
| 1963 | |
| 1964 | |
| 1965 | |
| 1966 | |
| 1967 | |
| 1968 | |
| 1969 | |
| 1970 | |
| 1971 | |
| 1972 | |
| 1973 | |
| 1974 | |
| | Year | Champion |
| 1975 | |
| 1976 | |
| 1977 | |
| 1978 | |
| 1979 | |
| 1980 | |
| 1981 | |
| 1982 | |
| 1983 | |
| 1984 | |
| 1985 | |
| 1986 | |
| 1987 | |
| 1988 | |
| 1989 | |
| 1990 | |
| 1991 | |
| 1992-Tier I | |
| 1992-Tier II | |
| 1993-Tier I | |
| 1993-Tier II | |
| 1994-Class A | |
| 1994-Class AA | |
| 1995-Class A | |
| 1995-Class AA | |
| 1996-Class A | |
| 1996-Class AA | |
| 1997-Class A | |
| 1997-Class AA | |
| 1998-Class A | |
| | Year | Champion |
| 1998-Class AA | |
| 1999-Class A | |
| 1999-Class AA | |
| 2000-Class A | |
| 2000-Class AA | |
| 2001-Class A | |
| 2001-Class AA | |
| 2002-Class A | |
| 2002-Class AA | |
| 2003-Class A | |
| 2003-Class AA | |
| 2004-Class A | |
| 2004-Class AA | |
| 2005-Class A | |
| 2005-Class AA | |
| 2006-Class A | |
| 2006-Class AA | |
| 2007-Class A | |
| 2007-Class AA | |
| 2008-Class A | |
| 2008-Class AA | |
| 2009-Class A | |
| 2009-Class AA | |
| 2010-Class A | |
| 2010-Class AA | |
| 2011-Class A | |
| 2011-Class AA | |
| 2012-Class A | |
| 2012-Class AA | |
|