2004

6.4

2020

7.4

2012

5.8

2017

4.7

2012

5.4

1963

5.9

2005

5.7

2001

5.2

1992

5.0

1996

7.6

2014

7.5

2014

6.2

2013

4.2

2013

7.3

2021

7.2

2013

6.7

2009

6.5

2009

6.5

2008

4.9

2004

6.6