2018

8.5

2020

8.3

2015

8.4

2016

7.5

2012

8.3

2014

8.2

2017

8.3

2019

8.6

2014

8.3

2018

8.3

2013

7.3

2020

8.5

2023

7.9

2018

8.0

2014

8.0

2019

7.8

2010

8.5

1975

7.7

2016

8.0

2017

8.5