2014

8.4

1980

7.7

2017

8.6

2017

7.3

2023

8.1

1992

6.8

2018

7.6

2015

7.8

2005

7.6

2007

7.4

2010

7.7

2021

6.7

2005

7.5

2011

5.9

2012

7.5

2018

7.9

2009

6.7

2017

8.4

2014

6.6

2018

7.3