1984

6.5

1978

5.3

1994

7.2

1974

5.8

1972

4.9

1991

2.5

1972

7.9

2006

2.0

1954

6.5

1960

5.0

1991

0.0

1993

6.6

1981

6.7

1987

6.8

1975

5.5

1950

7.0

1969

5.6

1948

6.5

1961

4.8

1972

5.0

1984

5.5

1996

6.3

1962

7.3

1977

5.8

1983

6.8

1957

5.7

1976

4.1