1984

5.9

1996

6.4

1961

5.1

1979

6.5

1989

3.7

1968

6.7

1988

4.2

1984

6.1

1977

6.8

1990

4.1

1990

3.6

1984

4.6

1994

6.1

1982

6.8

1967

5.3

1979

6.9

1981

7.6

1987

6.2

1978

2.8

1981

3.7

1987

7.7

1978

5.2

1980

5.7

1991

7.0

1984

7.5

1965

4.3

1983

2.3

1975

6.7

1987

0.0

1974

6.2

1980

4.8

1968

6.6

1983

6.4

1980

6.3

1991

6.0

1981

6.7

1986

7.9

1995

7.6

1966

8.0

1993

7.9

2016

5.7

1996

5.8

1979

5.0

1976

5.5

1958

0.0

1948

6.8

1977

7.3

1996

0.0

1983

4.1

1961

5.4

1962

7.5

1957

7.0

2003

8.0

1990

4.3

1975

7.0

1979

0.0