2014

6.3

2017

6.0

2012

5.6

2019

6.6

1983

7.0

1995

6.4

1997

5.9

1991

6.6

2007

6.9

1976

5.7

2003

6.5

2016

4.5

2019

7.9

2019

7.2

2017

4.3

2010

6.3

2009

4.2

2002

6.5

2017

4.9

2019

5.3