1981

7.6

1955

7.8

1971

8.1

1953

6.2

1967

6.1

1948

7.0

1966

5.7

1984

5.6

1949

7.4

1981

6.1

1957

7.7

1972

0.0

1973

6.6

1950

7.5

1960

6.2

1981

0.0

1946

6.6

1959

5.0

1969

5.3

1949

6.6

1971

0.0

1947

6.1

1964

7.2

1979

5.8