2016

5.9

2012

6.4

2021

6.6

1971

4.8

2010

6.9

2017

6.1

2020

5.5

2003

8.7

2012

6.3

2013

7.2

2009

4.8

2007

9.8

2014

8.5

2012

8.0

2015

7.6

1957

7.6

1991

5.1

2014

6.0

2000

6.4

1976

5.2