2008

8.9

2022

7.0

2007

8.5

1999

8.7

2017

7.1

2010

8.2

2004

8.1

2011

7.1

2016

8.7

2010

8.5

1988

7.8

2012

7.7

1994

8.4

2013

5.7

2010

7.7

2017

7.9

1998

7.0

2013

6.8

2000

8.0

2003

7.5