2015

8.7

2023

7.4

2006

7.4

2006

8.2

2005

7.6

2014

8.3

2022

8.0

2003

7.1

2017

6.9

2013

8.2

2013

8.1

1984

7.4

2006

7.8

1990

8.3

1996

6.8

2009

7.4

2004

7.2

2015

8.3

1990

6.9

2008

7.5