1985

8.9

2018

8.5

2005

8.2

2021

6.9

2012

8.3

2022

8.7

2006

6.8

1992

8.5

2014

7.5

2004

9.5

2023

9.8

2012

8.3

2015

8.1

2025

9.6

1998

7.6

2016

7.8

2016

7.7

2021

7.3

1995

7.2

2016

8.2