2009

7.3

2012

6.7

1991

7.6

2013

7.0

2011

7.4

2016

8.5

2017

6.6

2017

7.2

2020

7.6

2005

5.6

2002

7.9

2007

8.1

2018

8.5

2016

6.8

2023

8.8

2020

7.2

2020

7.3

2014

8.3

2006

9.3

2015

7.4