2019

8.7

2011

8.5

2008

7.6

2015

7.7

1990

8.0

2014

6.3

2001

8.1

2015

8.2

2017

7.1

2017

7.4

2013

7.9

2021

7.5

2019

6.4

2011

8.3

2018

8.2

1988

8.1

2005

8.3

1969

8.3

2016

8.3