2011

7.0

2001

6.5

2009

7.0

2009

5.9

2015

8.5

2009

5.0

2009

6.9

1998

6.3

2006

3.4

1996

0.0

2003

5.8

2006

6.0

2004

7.9

2006

5.0

1993

6.0

2005

0.0

2000

0.0