1966

7.1

1962

7.5

1963

7.2

1949

6.6

1966

5.6

1955

6.1

1951

6.1

1937

7.0

1962

6.1

1959

6.4

1961

7.3

1960

6.3

1965

6.6

1965

6.1

1934

3.7

1967

6.3

1953

6.8

1939

6.1

1959

6.2