2015

7.7

2016

8.0

2003

7.6

2007

7.9

2010

6.8

2016

7.9

1998

8.7

2017

8.2

2008

8.4

1999

7.4

2014

6.1

2017

7.5

2016

6.9

2017

7.1

1998

6.9

2016

7.4

2016

7.0

2005

7.3

2019

8.2

2015

8.2