1992

8.5

1999

7.4

2009

8.0

2004

8.3

2013

7.5

2018

6.4

1995

9.5

2014

8.5

2019

7.1

2013

8.0

2011

6.4

2022

7.2

2024

7.7

2012

6.8

2023

8.9

2016

7.8

2008

8.3