2006

6.4

2013

7.4

1978

6.6

2018

8.3

2008

8.9

2019

8.7

2017

8.4

2016

8.6

1995

8.6

2022

8.3

2011

8.5

1994

8.4

2001

8.6

2013

8.7

2007

7.9

1989

8.0

2013

8.1

2010

8.1

2016

7.8

2015

8.7