2009

6.2

2008

5.7

2021

9.2

2008

7.7

2017

6.7

2006

6.6

2008

5.2

1965

6.3

2015

7.9

2023

6.2

2021

5.0

2013

6.0

2003

6.1

2010

7.7

2013

6.1

2017

5.6

2016

6.7

2021

7.5

1996

5.9