2009

8.4

2010

8.2

2020

8.5

2004

8.3

2002

7.9

2003

7.8

2005

7.7

2004

8.6

2018

5.4

2018

8.1

1996

7.3

2016

8.0

1987

9.2

2008

8.3

2019

8.5

2016

7.7

2008

7.9

2014

8.5

1990

7.6

2022

7.5