1971

7.3

1963

7.4

1947

6.7

1964

6.5

1973

5.7

1965

6.7

1967

6.6

1967

5.8

1959

6.7

1945

6.0

1968

4.5

1949

6.0

1961

0.0

1971

7.2

1970

6.1

1963

6.1

1957

5.4

1953

5.8

1956

7.5

1958

6.6

1954

5.5

1958

6.5

1956

6.3

1972

6.2