1980

0.0

1976

7.5

1973

7.0

1973

5.5

1958

6.0

1974

7.5

1974

7.2

1969

8.3

1957

5.0

1979

6.6

1952

0.0

1974

5.0

1988

7.4

1973

7.6

1980

5.0

1973

5.6

1984

6.1

1953

1.0

1978

6.5