2017

6.8

2010

6.1

2014

6.0

2014

7.2

1993

5.6

2015

6.2

1979

6.0

2004

5.9

2023

10.0

2010

7.2

2014

7.0

2006

7.6

2009

7.3

2013

5.7

2017

6.0

2016

6.9

2020

6.1

2021

5.4

1985

7.4

2005

6.5