2016

5.9

2019

6.3

2001

5.8

2017

6.5

2009

5.3

2000

9.4

1976

5.5

2017

6.5

2001

8.0

2001

5.6

2001

6.0

2005

6.4

2007

7.5

2014

5.7

2010

5.6

2004

6.4

1947

6.3

2010

7.2

2006

8.2

2014

8.0