2005

8.1

2008

8.9

1987

8.4

1997

8.3

2012

7.6

2005

7.6

2015

7.5

2013

7.7

2003

8.2

2001

7.6

2022

8.2

2014

7.6

2013

7.7

1966

8.0

2015

6.2

2007

8.5

2017

8.1

1989

8.0

2004

7.3

2016

8.6