2008

5.7

2009

0.0

2005

5.2

2015

3.8

2016

4.0

1994

5.6

2019

6.8

2011

6.3

2007

6.0

2019

5.1

2012

4.7

2012

5.9

2015

6.9

2017

7.7

2004

4.5

2017

7.0

2012

6.2

1970

6.2

1978

5.5

2018

8.0

2013

0.0

2006

6.3

2020

0.0