2016

6.0

2014

8.5

2015

7.3

1998

8.1

2016

7.9

2018

7.5

2009

7.6

2014

7.4

2016

7.3

2001

7.9

1972

8.7

2017

7.6

2003

7.8

1994

8.7

2017

7.3

2012

6.4

1987

7.3

1980

8.2

2017

6.7

2015

7.3