| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2001 | 4.2 | 4.2 | 4.3 | 4.4 | 4.3 | 4.5 | 4.6 | 4.9 | 5.0 | 5.3 | 5.5 | 5.7 |
| 2002 | 5.7 | 5.7 | 5.7 | 5.9 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.9 | 6.0 |
| 2003 | 5.8 | 5.9 | 5.9 | 6.0 | 6.1 | 6.3 | 6.2 | 6.1 | 6.1 | 6.0 | 5.8 | 5.7 |
| 2004 | 5.7 | 5.6 | 5.8 | 5.6 | 5.6 | 5.6 | 5.5 | 5.4 | 5.4 | 5.5 | 5.4 | 5.4 |
| 2005 | 5.3 | 5.4 | 5.2 | 5.2 | 5.1 | 5.0 | 5.0 | 4.9 | 5.0 | 5.0 | 5.0 | 4.9 |
| 2006 | 4.7 | 4.8 | 4.7 | 4.7 | 4.6 | 4.6 | 4.7 | 4.7 | 4.5 | 4.4 | 4.5 | 4.4 |
| 2007 | 4.6 | 4.5 | 4.4 | 4.5 | 4.4 | 4.6 | 4.7 | 4.6 | 4.7 | 4.7 | 4.7 | 5.0 |
| 2008 | 5.0 | 4.9 | 5.1 | 5.0 | 5.4 | 5.6 | 5.8 | 6.1 | 6.1 | 6.5 | 6.8 | 7.3 |
| 2009 | 7.8 | 8.3 | 8.7 | 8.9 | 9.4 | 9.5 | 9.5 | 9.6 | 9.8 | 10. | 9.9 | 9.9 |
| 2010 | 9.7 | 9.8 | 9.8 | 9.9 | 9.6 | 9.4 | 9.5 | 9.6 | 9.5 | 9.5 | 9.8 | 9.4 |
| 2011 | 9.1 | 9.0 | 8.9 | 9.0 | 9.0 | 9.1 | 9.1 | 9.1 | 9.0 | 8.9 | 8.7 | 8.5 |
Figures courtesy of the Bureau of Labor Statistics