2012

7.2

2018

10.0

2019

8.7

2016

8.6

2011

8.5

2001

8.6

2018

8.3

2008

8.9

2015

8.7

1989

8.2

2013

8.1

1994

8.4

2002

8.6

2014

8.5

2017

8.4

2000

8.0

2006

8.6

2010

7.9

2002

8.3

2010

8.0