1981

6.0

1998

5.5

2003

3.4

2006

0.0

2017

5.9

1997

6.2

1983

5.0

2006

0.0

2011

5.4

2000

10.0

2008

2.0

1982

5.0

2000

4.8

2009

6.5

1995

6.3

2000

6.2

1982

5.2

2015

4.2