1940

5.7

1943

6.5

1956

6.7

1958

7.0

1947

7.0

1935

1.0

1937

6.2

1946

5.6

1961

7.3

1946

6.7

1963

6.6

1960

6.0

1957

5.9

1952

5.9

1941

6.0

1947

6.6