1984

7.2

2012

9.7

2002

8.2

2020

6.3

2013

7.6

1984

9.2

2013

8.4

2018

6.1

2015

6.1

2003

5.8

2006

5.1

2009

4.0

2010

6.6

2018

5.5

2017

4.9

2016

6.5

2022

6.2

2016

7.2