2012

5.8

2009

8.5

1993

5.5

2006

2.6

2008

10.0

2004

7.0

2015

5.0

2017

9.8

1997

2.1

2023

5.1

1999

5.3

2003

7.4

2021

10.0

2018

6.0

2013

2.8

2016

7.0

2016

6.2

2011

4.0