1978

0.0

1953

4.4

1977

5.6

1975

5.0

1973

7.3

1988

6.1

1974

6.1

1972

7.7

1952

5.8

1951

7.2

1981

5.6

1953

5.5

1951

4.2

1967

6.9

1959

5.6

1963

5.3

1965

6.2

1970

7.8

1958

6.5

1976

7.4

1982

7.0

1959

6.3

1977

6.0

2014

0.0

1979

4.7

1957

7.1

1948

6.5

1978

2.0

1983

4.6

1960

6.8

1962

6.3

1978

4.2