2006

8.4

1997

6.1

2003

4.8

2001

6.3

2003

6.5

2003

6.1

1992

6.7

2000

7.2

1992

0.0

2012

6.9

1993

6.5

2005

6.2

1999

6.7

2000

6.3

2002

2.5

2002

6.8

2000

5.6

2004

9.0

2001

5.8

2002

6.7

2001

7.4