2001

6.2

1993

3.0

1998

5.2

2009

4.7

2005

6.0

1994

7.0

2005

2.4

2006

5.0

2008

7.5

2007

1.0

2002

5.5

2002

6.0

2001

5.9

1996

0.0

2003

7.0

1995

4.3

2012

3.3

2006

6.0