2006

9.3

2021

8.1

1992

6.9

2017

8.3

2016

8.6

2023

6.5

2010

8.1

1998

6.8

2002

8.1

2017

7.1

2011

8.1

1990

6.8

2000

6.7

2003

5.6

2008

8.6

2012

8.3

2005

6.2

2020

4.0

1998

9.9

2013

8.7