2018

9.0

2007

7.0

2020

7.6

2015

7.9

2017

8.4

2016

6.3

2019

8.1

10.0

2011

7.0

2019

7.4

2004

7.2

1998

8.6

1969

7.7

2021

5.0

2015

7.1

2006

4.2

2018

5.5

2006

7.6

2011

7.5

2023

7.0