1952

4.9

1943

6.8

1935

6.3

1956

6.6

1961

6.2

1968

7.1

1965

6.6

1936

6.5

1955

6.0

1936

6.0

1980

7.3

1943

6.0

1951

8.0

1957

6.7

1941

4.0

1955

5.9

1953

5.3

1937

6.3

1934

6.4