2006

6.6

2019

8.1

1980

8.2

1994

8.7

2013

8.0

2017

7.2

2006

7.4

2009

7.6

2014

7.9

1995

6.8

1938

7.1

2008

8.5

2017

7.2

2017

7.6

2011

6.9

2004

7.5

2021

7.8

2016

7.5

2015

7.9

2004

7.2