2004

8.6

1991

7.7

2007

8.5

2014

8.4

2016

6.9

1993

6.6

2013

8.7

2018

7.2

2021

8.2

2023

6.6

2018

7.4

2020

8.2

2013

7.6

2009

7.4

2012

8.6

2011

8.6

1993

8.1

2019

8.2

2006

7.5

2015

7.1