| Year | Division | Moyenne |
|---|---|---|
| 1971 |
|
|
| 1970 |
|
|
| 1969 |
|
|
| 1968 |
|
|
| 1967 |
|
|
| 1966 |
|
|
| 1965 |
|
|
| 1964 |
|
|
| 1963 |
|
|
| 1962 |
|
|
| 1961 |
|
|
| 1960 |
|
|
| 1959 |
|
|
| 1957 |
|
|
| 1956 |
|
|
| 1954 |
|
|
| 1952 |
|
|
| 1951 |
|
|
| 1950 |
|
|
| 1949 |
|
|
| 1947 |
|
|
| 1946 |
|
|
| 1944 |
|
|
| 1942 |
|
|
| 1941 |
|
|
| 1935 |
|
|
| 1934 |
|
|
| 1933 |
|
|
| 1932 |
|
|
| 1931 |
|
|
| 1930 |
|
|
| 1929 |
|
|
| 1927 |
|