1932

7.4

1929

7.5

1946

7.6

1958

7.6

2006

6.0

1969

6.6

1958

7.7

1952

6.0

1946

3.6

1956

6.1

1949

6.2

1950

6.6

1953

6.2

1952

5.5

1952

6.6

1950

5.6

1950

6.2

1951

6.7

1951

6.6

1947

4.8