1938

4.7

1943

0.0

1937

5.0

1954

6.4

1952

6.1

1949

7.0

1950

4.0

1940

0.0

1942

0.0

1951

5.0

1959

7.1

1958

6.3

1954

6.0

1960

7.5

1950

6.7

1955

7.2

1942

7.0

1951

5.7