2013

6.2

2009

5.9

2014

6.0

2010

5.6

2017

3.7

1997

0.0

2019

0.0

2024

6.8

2004

5.2

2015

7.5

1993

5.2

2013

1.0

2012

6.3

2007

0.0

2012

0.0

2006

6.0