1984

2.7

1974

7.0

1994

5.4

1998

5.8

1978

7.3

1972

5.8

1999

6.4

1977

4.9

1975

5.5

1994

7.8

1997

5.5

1976

4.5

1984

4.3

1983

5.6

1992

6.3

1996

6.0

1988

5.2

1979

6.8

1978

0.0

1973

7.1

1977

6.5

1984

3.6

1989

3.6

1979

7.1

1993

7.7

1987

6.3

1994

7.5

1994

4.5

1971

5.2

1985

6.9

1984

5.5

1979

6.7

1976

8.1

2014

7.0

1973

2.7

1996

6.0

1982

2.0

1986

6.2

2004

6.5

1979

6.7

1991

8.3

1980

6.3

1992

6.2

1980

6.4

1968

6.1