2011

6.2

2007

3.6

2009

7.6

2003

4.9

2004

7.4

2005

5.2

2006

7.4

2017

10.0

2003

6.4

2006

7.9

2003

10.0

2017

7.5

1996

7.0

2001

4.0

2002

7.7

2005

0.0

2000

6.5

2010

8.0