1931

7.2

1968

5.9

1947

6.7

1973

6.7

1948

7.1

1945

7.4

1944

5.2

1990

5.1

1967

4.0

1982

0.0

1971

5.4

1965

7.7

1982

6.5

1917

5.0

1968

7.0

1943

6.9

1975

0.0

1945

6.9

1935

6.3

1964

7.0