1965

6.5

1945

6.1

1962

6.4

1942

5.1

1952

6.2

1963

6.6

1938

5.8

1952

4.8

1969

6.4

1951

8.0

1950

7.1

1962

5.3

1957

8.0

1954

7.0

1970

7.8

1969

7.3