2001

6.8

2006

6.9

2008

6.4

1994

7.8

2009

7.0

2018

0.0

2005

7.1

1996

6.7

2013

6.1

1998

7.3

2000

5.7

2001

8.0

2008

8.4

2004

6.5

2007

7.5