1968

7.1

1963

5.2

1972

7.7

1947

6.4

1965

7.3

1955

6.5

1949

6.7

1974

5.2

1965

7.8

1946

8.3

1961

6.7

1950

6.0

1951

6.0

1945

4.0

1971

6.7

1948

6.5

1955

6.0

1966

5.7

1962

7.3

1950

7.0