| 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 |