2019

6.7

5.3

2017

5.9

2014

5.4

6.3

2007

5.7

1984

6.5

2006

7.0

2021

5.7

2020

5.8

2003

6.2

2013

6.1

2013

6.1

2002

7.8

2012

6.3

2012

6.0

2017

5.2

2012

7.2