2004

5.9

1968

7.1

1988

3.0

1972

5.8

1970

3.9

1992

0.0

1985

5.5

1991

6.9

1988

7.2

1973

4.2

1999

4.8

1982

7.5

1979

6.8

1992

5.9

1992

2.5

1981

6.1

1988

5.0

1985

6.8

1980

5.9

1989

7.2

1978

5.0

1979

6.1

1971

4.2

2001

3.0