2014

5.3

2019

6.1

1993

6.7

2015

6.9

2003

7.1

2015

6.3

2011

6.3

1986

7.7

2001

7.5

2007

8.6

2010

5.5

2016

6.1

2006

6.4

2017

5.6

2012

5.0

2015

5.8

2017

6.4

2003

7.8

2017

5.0

2010

6.7