2004

7.8

2001

6.4

2013

6.2

2000

6.3

2007

6.7

2014

7.0

2016

5.9

1996

7.0

2025

0.0

2014

7.9

2016

5.9

2012

6.4

2013

6.3

2014

6.9

2017

6.9

1994

6.5

2015

7.3

2012

6.9

1928

7.9

2010

7.2