2008

8.9

2006

5.5

2019

8.1

2015

6.1

2016

5.9

2007

5.8

2018

5.3

2013

7.2

2018

5.6

2014

4.9

1996

6.7

1972

6.2

2016

7.0

2015

7.6

1986

6.8

2015

7.0

2018

5.6

2015

7.6

2011

7.1