2017

6.0

2014

8.0

2013

5.7

1968

6.9

2016

7.9

2012

7.7

1982

5.9

2016

8.4

1993

6.1

2014

5.5

2009

7.1

2008

7.4

2016

6.0

2018

5.9

2016

5.3

1992

5.0

2004

6.9

2014

4.6

2022

5.9