| 1970 |
 |
1980 |
|
1990 |
 |
2000 |
|
2010 |
|
||
| 1971 |
|
1981 |
|
1991 | tie | 2001 | tie | 2011 |
|
||
| 1972 |
|
1982 |
|
1992 | tie | 2002 |
|
2012 | tie | ||
| 1963 |
|
1973 |
|
1983 |
|
1993 |
|
2003 |
|
2013 |
|
| 1964 |
|
1974 |
|
1984 |
|
1994 |
|
2004 |
|
||
| 1965 |
|
1975 |
|
1985 | tie | 1995 |
|
2005 |
|
||
| 1966 |
|
1976 |
|
1986 |
|
1996 |
|
2006 |
|
||
| 1967 |
|
1977 |
|
1987 |
|
1997 |
|
2007 |
|
||
| 1968 |
|
1978 |
|
1988 |
|
1998 |
|
2008 |
|
||
| 1969 |
|
1979 |
|
1989 |
|
1999 |
|
2009 |
|