1984

0.0

1986

6.5

1994

7.6

2002

5.5

1995

7.9

1998

6.9

1980

6.6

1997

4.2

2004

4.3

1982

5.2

2008

7.7

1985

6.6

2000

2.0

2002

6.2

2002

2.5

1984

4.5

1999

4.0

2003

0.0

1992

0.0

1981

7.2

1988

6.2