1938

7.1

1931

5.0

1934

5.6

1935

4.5

1939

6.8

1937

6.0

1934

6.0

1965

4.7

1944

6.9

1937

5.7

1931

5.7

1930

5.9

1951

4.4

2018

6.4

1932

6.4

1942

5.5

1954

5.6

1978

4.8

1937

6.9

1948

6.3