1996

6.0

2016

7.4

2015

7.3

2002

7.8

2018

7.6

2017

8.1

2008

8.5

2019

8.1

2019

8.2

2016

7.3

2016

7.6

2019

7.4

2015

6.7

2006

7.5

2015

7.5

2014

6.8

2017

6.4

2014

7.4

2016

6.4

2011

7.2