2008

8.9

2013

8.2

2019

8.7

2011

8.5

2025

7.4

2000

7.6

1994

8.4

2003

7.4

2018

8.3

1999

8.4

2007

7.9

1989

8.0

2005

7.6

2014

8.3

2017

8.4

2011

7.6

1990

6.9

1997

8.3

2016

8.6

2010

8.5