2008

8.9

1994

8.4

2011

8.5

2005

8.6

2019

8.7

2005

7.5

1995

7.8

2010

8.5

2003

7.5

2016

8.3

2014

8.0

2013

7.9

1989

8.3

2015

8.2

2006

8.2

2015

7.7

1966

7.3

2016

6.9

2002

8.3

2002

8.6