2018

9.6

2008

7.6

1999

7.5

2017

7.4

2011

6.0

2014

7.7

2003

5.5

2004

5.6

2012

7.1

2011

7.6

2006

5.4

2018

7.6

1988

8.0

2013

6.9

2019

9.0

2025

6.3

4.8

2017

7.2

2016

7.8

2015

6.2