2008

8.1

2002

7.9

2001

7.6

2010

6.3

1975

6.9

1993

7.0

2014

7.8

2017

6.8

2016

7.6

2018

8.0

2004

5.8

2001

6.7

2023

7.8

2012

7.1

2016

7.4

2006

5.4

2004

5.8

2011

7.6

2015

7.8

2011

5.9