2011

6.7

2006

7.0

1998

4.5

2001

0.0

2008

7.5

2007

0.0

2003

5.8

2003

3.1

2000

5.3

2004

7.6

2009

3.9

1995

6.3

1997

0.0

2005

0.0

2018

5.4

2005

4.0

2002

4.8

2006

4.1

2006

4.7

2014

7.0