2014

9.0

2010

1.9

1993

0.0

1988

3.1

2008

7.5

2005

7.5

2004

4.5

2006

4.7

2015

6.9

2001

7.3

2003

5.1

2010

7.9

2011

2.0

2017

0.0

2014

2.0