2012

8.1

1979

7.4

2015

7.7

2007

6.8

2018

7.1

1995

7.3

2020

8.2

1999

7.7

2004

8.6

2008

7.8

2015

7.8

2020

8.3

2013

8.3

2020

6.6

2020

7.4

2003

7.2

2017

7.6

2022

6.2

1988

7.2

2019

7.1