1964

7.3

1964

7.6

1971

7.5

1953

7.3

2000

6.2

1952

8.1

1968

4.8

1981

4.5

1982

5.7

1958

6.2

1930

6.1

1944

7.0

1987

6.8

2014

6.2

1948

6.5

1945

6.8

1993

6.5

2000

5.7

2006

4.8

1941

7.1