1960

8.2

1952

7.7

1954

8.5

1957

8.6

2006

5.8

1930

7.3

1920

7.9

1927

8.1

1932

7.8

1930

7.8

1987

7.8

1959

8.0

1971

4.8

1987

0.0

2025

9.5

2001

7.5

1951

6.7

1931

7.2

1973

7.9

1970

0.0