1959

7.8

1971

7.7

1953

7.4

1960

2.0

1938

4.0

2017

6.2

2000

6.4

1950

5.0

1976

9.0

1966

8.5

1940

5.2

1965

6.3

1959

5.9

1985

7.0

1975

6.3

1962

7.0

1973

7.3

1972

6.5

1975

5.3

1969

6.4