1959

7.8

1963

10.0

2006

5.8

2005

7.5

1932

7.4

1942

7.8

1920

7.9

1959

8.1

1956

7.6

1960

8.4

1929

6.5

1950

8.0

1953

7.7

1960

8.0

1998

7.1

1994

7.5

1965

6.0

1954

6.3

1958

7.1

1965

7.4