1998

4.8

1974

5.7

2012

8.3

1972

8.6

1975

6.3

1989

5.9

1948

7.3

1985

6.6

1979

5.0

1971

6.5

1993

4.8

1993

7.1

1956

5.5

1974

6.5

1999

8.2

1993

7.7

1965

7.9

1974

7.7

1980

5.3

1984

7.4

1973

7.0

1999

7.3

1976

7.2

1958

4.0

1983

7.6

2009

5.6

1946

6.9

1973

6.8

1978

7.1

1992

5.7

1984

7.5

1986

5.8

1980

5.2

1952

6.0

1973

7.1

1977

6.5

1982

7.1

1977

5.2

0.0

1990

6.0

1945

6.0

1989

5.1

1982

5.4

1962

5.7

1948

4.7

1954

0.0

1949

4.6

1947

5.2

1950

7.0

1947

5.9

1978

7.2

1996

6.0

1976

6.0

1995

6.7

1985

7.6

1980

7.5

1975

4.0

1975

7.3

1977

6.3

1977

0.0

1974

5.0

1948

6.0

1976

0.0

1984

2.5

1997

5.8

1972

7.0

1972

7.1

1979

6.3

1984

6.9

1974

8.0