2013

8.6

2018

7.6

2009

6.8

2022

6.9

1990

8.3

2006

6.9

2016

7.1

1999

8.2

2007

7.3

2012

6.3

2016

6.8

2003

7.5

2019

7.7

2015

7.7

1990

7.0

2008

8.4

2023

7.2

2019

8.5

2013

8.1

2020

7.8