2021

8.7

2018

8.3

2011

7.8

1983

6.8

2016

8.5

2014

8.6

2002

7.9

2008

7.5

2017

7.3

2014

8.1

2004

9.5

2018

7.6

2007

8.2

2012

7.0

2020

6.7

2010

7.7

1989

8.4

1997

8.0

1989

6.7

2016

8.6