2012

6.7

2020

7.0

2006

6.4

2001

7.2

2019

6.8

2020

5.8

1989

6.6

2025

10.0

2004

6.0

1977

6.2

2008

6.8

2013

6.1

2009

6.0

2010

6.7

2009

6.3

2020

6.7

2013

6.3

2018

8.1

2013

7.9

2005

5.5