2009

4.6

2003

5.0

2005

7.8

2010

4.6

1997

4.4

2006

9.8

1984

6.5

2009

7.1

2017

4.5

2007

7.7

2023

7.3

2005

7.0

2020

9.4

2001

6.7

2002

8.4

6.8

1979

7.3

2019

6.3

2016

6.7

2016

6.8