2017

4.8

2009

7.1

1989

6.6

2001

6.0

2015

6.7

2023

6.5

2017

6.5

2016

6.4

1988

5.7

2011

6.4

2016

7.6

2010

7.2

2004

4.9

2002

6.1

2002

6.5

2008

8.7

2005

6.2

2009

7.4

1998

6.9

2016

6.7