2015

4.8

2010

6.9

2016

5.3

2019

6.5

1977

6.0

2008

5.7

2005

4.3

2006

5.2

2009

0.0

2021

5.5

2004

0.0

2020

7.6

2006

1.0

2007

6.0

2020

5.0

2014

5.0

2011

6.9

2017

9.0

2013

6.6

1971

6.4

2024

6.6

2012

2.0

2018

5.2

2001

6.2

2004

6.1

2018

0.0