1982

6.3

1984

0.0

1990

7.3

1991

5.4

1999

4.8

2003

6.2

1981

4.2

1982

0.0

2008

4.8

1980

5.0

1994

5.0

2003

0.0

1991

0.0

1994

6.0

2006

4.6

2000

4.9

2004

4.7

1995

0.0

1998

3.0

1983

3.0