(Source: USDOC/Bureau of Economic Analysis)
| Domestic | Import | Average | |
| 2006 | $20,623 | $29,643 | $23,338 |
| 2007 | $20,605 | $29,878 | $23,492 |
(Source: USDOC/Bureau of Economic Analysis)
| Domestic | Import | Average | |
| 2006 | $20,623 | $29,643 | $23,338 |
| 2007 | $20,605 | $29,878 | $23,492 |