1930

7.8

2016

3.8

1929

6.5

1972

7.1

1953

7.7

1950

8.3

1958

6.8

1963

8.1

1993

8.6

1957

8.2

2003

7.2

1994

7.5

2011

5.2

2006

5.8

1932

7.4

1944

7.6

1930

7.3

1920

7.9

1959

8.1

1956

7.7