2020

5.8

2015

7.1

2017

7.1

2015

7.1

2015

7.3

2014

8.5

2016

7.9

2018

7.5

1998

8.1

2001

7.9

2009

7.6

2014

7.4

1994

8.7

2016

7.3

2017

7.6

2017

7.3

2017

6.7

1980

8.2

2009

8.0

2016

7.6