1979

0.0

2001

6.8

1975

7.4

1990

6.9

1999

8.2

1978

4.5

1987

7.6

1976

5.5

1951

8.6

1987

5.7

1982

6.8

1992

7.0

1999

7.5

1993

6.9

1969

6.1

1992

6.7

1986

7.2

1984

7.5

1981

7.0

1982

6.7

1985

8.0

1995

0.0

1999

6.5

1967

7.7

1948

6.8

1979

6.7

1977

6.3

1961

5.4

1971

4.0

1997

4.1

1987

5.5

1977

0.0

1962

7.5

1956

5.9

1980

6.3

1995

7.2