2013

6.8

1994

7.6

2011

6.5

2013

0.0

2015

6.2

2007

6.2

2002

5.6

2006

4.0

2012

5.9

1997

6.4

2003

6.4

2019

8.5

2004

9.0

2005

6.3

2018

7.9

2009

7.7

2019

8.0