2019

8.1

2016

7.4

2014

7.4

2019

8.1

2016

6.0

1995

8.4

2018

7.6

2015

7.5

2004

7.9

2013

6.2

1982

8.1

2017

7.0

2010

8.4

1972

8.7

2009

7.3

2007

7.2

2011

8.1

2014

5.7

2017

8.1

2001

6.9