1985

4.9

1978

7.2

1990

6.4

1998

0.0

1973

6.0

2006

5.3

1992

7.0

1974

6.3

1974

5.5

1997

7.5

1984

5.0

1980

5.8

1980

5.9

1982

5.0

1972

4.0

1986

5.0

2004

0.0

1980

5.4

1976

6.9

1990

0.0

1978

5.0

1999

4.8

1989

0.0