2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

Demand

10.7

2.4

10.5

11.6

13.4

10.6

11.2

10.9

4.4

−9.7

5.2

Supply

7.8

8.5

8.0

8.0

8.0

10.5

13.6

11.7

10.9

5.2

5.2