2017

8.0

2002

7.1

2006

6.2

1999

6.3

2001

7.9

2004

6.6

2001

6.9

2012

6.6

2019

8.1

1983

5.5

2003

6.3

2009

7.6

2003

6.8

2011

7.2

1989

6.5

2021

6.8

2018

7.6

2017

7.4

2013

7.7

2016

5.3