1966

7.1

1962

7.5

1963

7.3

1949

6.6

1966

5.7

1955

6.1

1937

6.9

1962

6.1

1959

7.0

1961

7.3

1960

6.4

1965

6.5

1965

6.0

1934

4.2

1967

6.3

1953

6.8

1939

6.3

1959

6.2