2020

6.3

2011

5.9

2009

5.3

2016

7.0

2024

6.9

1981

6.6

1998

6.0

2017

6.1

2011

6.2

2013

5.7

2016

6.1

2009

7.3

2002

4.6

2011

7.0

1982

7.5

2012

5.4

2016

5.4

2007

5.7

2014

7.2

2015

6.7