1991

7.8

2018

8.3

2017

8.4

2008

8.9

2019

8.7

2013

8.7

2016

8.6

2011

8.5

1994

8.4

2013

8.1

2022

8.3

1995

8.6

2021

7.9

2010

8.1

2005

8.2

1989

8.0

2017

8.2

2019

8.4

2018

8.5

2019

8.4