| Year | Team |
| 1970 Champ | |
| 1970 2nd | |
| 1971 Champ | |
| 1971 2nd | |
| 1972 Champ | |
| 1972 2nd | |
| 1973 Champ | |
| 1973 2nd | |
| 1974 Champ | |
| 1974 2nd | |
| 1975 Champ | |
| 1975 2nd | |
| 1976 Champ | |
| 1976 2nd | |
| 1977 Champ | |
| 1977 2nd | |
| 1978 Champ | |
| 1978 2nd | |
| 1979 Champ | |
| 1979 2nd | |
| 1980 Champ | |
| 1980 2nd | |
| 1981 Champ | |
| 1981 2nd | |
| 1982 Champ | |
| 1982 2nd | |
| 1983 Champ | |
| 1983 2nd | |
| 1984 Champ | |
| | Year | Team |
| 1984 2nd | |
| 1985 Champ | |
| 1985 2nd | |
| 1986 Champ | |
| 1986 2nd | |
| 1987 Champ | |
| 1987 2nd | |
| 1988 Champ | |
| 1988 2nd | |
| 1989 Champ | |
| 1989 2nd | |
| 1990 Champ | |
| 1990 2nd | |
| 1991 Champ | |
| 1991 2nd | |
| 1992 Champ | |
| 1992 2nd | |
| 1993 Champ | |
| 1993 2nd | |
| 1994 Champ | |
| 1994 2nd | |
| 1995 Champ | |
| 1995 2nd | |
| 1996 Champ | |
| 1996 2nd | |
| 1997 Champ | |
| 1997 2nd | |
| 1998 Champ | |
| 1998 2nd | |
| | Year | Team |
| 1999 Champ | |
| 1999 2nd | |
| 2000 Champ | |
| 2000 2nd | |
| 2001 Champ | |
| 2001 2nd | |
| 2002 Champ | |
| 2002 2nd | |
| 2003 Champ | |
| 2003 2nd | |
| 2004 Champ | |
| 2004 2nd | |
| 2005 Champ | |
| 2005 2nd | |
| 2006 Champ | |
| 2006 2nd | |
| 2007 Champ | |
| 2007 2nd | |
| 2008 Champ | |
| 2008 2nd | |
| 2009 Champ | |
| 2009 2nd | |
| 2010 Champ | |
| 2010 2nd | |
| 2011 Champ | |
| 2011 2nd | |
| 2012 Champ | |
| 2012 2nd | |
|