2014

6.9

2016

7.0

2015

7.6

2019

8.1

1979

8.2

2001

7.9

2013

7.5

2012

7.3

2017

7.8

2000

7.4

1995

7.3

2016

6.8

1994

8.5

2017

7.6

2014

7.2

2011

7.4

2016

7.3

2012

6.9

2015

7.8

2002

6.4