2009

5.9

1998

5.7

1999

6.4

2009

4.3

2014

4.7

2000

6.7

1999

7.9

2004

0.0

1992

6.1

2001

4.9

2011

6.8

2006

6.0

2003

7.1

2003

6.7

2008

6.3

1996

6.0

1997

4.3