2004

6.8

2015

6.9

2011

2.0

2017

7.1

2018

5.6

2008

7.6

2008

7.0

2006

3.0

2013

0.0

2022

7.6

2002

2.0

2000

7.6

2001

5.5

2010

7.7

1996

7.0