1955

7.7

1974

5.0

1947

6.7

1974

6.2

1975

4.3

1975

6.6

1975

2.0

1956

7.6

1979

4.5

1959

7.4

1959

6.1

1942

6.2

1969

6.5

1950

6.7

1971

5.0

1942

0.0

1971

6.6

1943

0.0

1956

3.7

1965

6.0

1945

6.1

1964

7.5

1951

6.9

1970

6.8

1963

3.6

1971

5.9