1985

6.2

1984

7.1

1971

6.4

1974

6.1

1948

7.0

1971

6.4

1981

6.3

1976

6.0

1965

5.5

1982

4.9

1935

7.3

1984

7.3

1975

5.2

1962

7.2

1984

5.7

1965

7.0

1952

5.8

1972

6.8

1973

6.9

1942

6.0

1983

6.2