2014

7.8

2007

7.6

1998

6.2

2010

6.4

2015

6.8

2003

5.2

2009

5.3

2022

6.3

2017

8.0

2010

8.0

2008

7.4

1969

8.3

1977

5.4

2009

7.9

2013

8.1

2018

6.9

2004

9.5

2008

6.0

2011

6.8

2021

6.2