2010

8.5

2014

7.6

2009

8.3

2014

8.3

2005

8.6

2018

7.9

2019

8.0

2022

8.4

2020

7.8

2017

7.3

1975

8.2

2013

8.2

2021

7.6

2010

7.8

2019

7.8

2000

8.0

2015

8.2

1998

8.5

2014

8.5

2004

7.3