2014

5.8

2012

7.1

1974

6.3

2007

6.9

2015

5.2

1996

5.9

2011

6.9

2009

4.6

2023

6.6

2009

8.5

2013

5.0

1997

6.1

2018

6.9

2009

6.7

2015

6.1

1987

8.0

2006

6.4

2005

6.7

2023

6.7

2014

7.0