| Year | Division | Moyenne |
|---|---|---|
| 1990 |
|
|
| 1989 |
|
|
| 1988 |
|
|
| 1987 |
|
|
| 1970 |
|
|
| 1969 |
|
|
| 1968 |
|
|
| 1967 |
|
|
| 1965 |
|
|
| 1961 |
|
|
| 1960 |
|
|
| 1959 |
|
|
| 1958 |
|
|
| 1957 |
|
|
| 1956 |
|
|
| 1955 |
|
|
| 1954 |
|
|
| 1951 |
|
|
| 1950 |
|
|
| 1949 |
|
|
| 1946 |
|