1935

7.4

1946

7.8

1990

7.5

1987

7.8

1958

8.2

1951

7.7

1947

6.5

2001

6.1

2000

6.3

2016

5.2

1947

7.6

1946

7.6

1941

7.7

1946

6.1

1956

6.2

1955

7.2

1947

7.1

1950

6.7

1952

7.3

1958

6.7