| North American Championship |
1981 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1980 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1979 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1978 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1977 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1976 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1975 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1974 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1973 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1972 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1971 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1970 |
02 Jan |
02 Jan |
|
|
| North American Championship |
1969 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1968 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1967 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1966 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1965 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1964 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1963 |
01 Jan |
01 Jan |
|
|
| North American Championship |
1962 |
01 Jan |
01 Jan |
|
|