1931

6.3

1937

7.2

1936

6.5

1943

5.0

1944

5.4

1984

10.0

1931

3.0

1941

7.1

1932

1.0

1947

2.2

1930

7.0

1945

6.0

1956

5.0

1952

6.6

1950

6.9