2015

6.4

2014

8.0

2005

7.1

2013

7.2

2017

7.4

2019

8.1

1989

7.2

1994

8.5

2012

6.6

2017

7.3

2006

5.8

2016

7.5

1982

7.9

2015

7.6

2001

7.9

2017

7.6

2013

7.7

2015

6.4

2000

7.7

2014

7.1