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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Drilling machines other than way-type unit head machines, op. by removing m ... | | $81 | $4,783 | $510 | | $65 | $1,582 |
| Drilling machines other than way-type unit head machines, op. by removing m ... | $99,800 | $30,762 | $33,009 | $26,793 | $252,136 | $21,353 | $248,357 |
| Boring machines n.e.s. in 84.59, op. by removing metal | $48,637 | $3,063 | $232 | $37,348 | $21,278 | | |
| Milling machines op. by removing metal, knee-type, numerically controlled | | | | | | | $166 |
| Milling machines op. by removing metal, knee-type, other than numerically c ... | | $291 | $340 | | | | |
| Total | $148,437 | $34,197 | $38,364 | $64,651 | $273,414 | $21,418 | $250,105 |
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