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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Tungsten (wolfram) powders | $3,264,691 | $4,125,499 | $3,819,728 | $3,563,200 | $1,997,450 | $1,586,956 | $707,026 |
| Tungsten (wolfram) & arts. thereof , n.e.s. in 81.01 | $3,883,022 | $6,072,428 | $8,936,552 | $12,718,583 | $7,069,956 | $7,821,014 | $10,924,226 |
| Total | $7,147,713 | $10,197,927 | $12,756,280 | $16,281,783 | $9,067,406 | $9,407,970 | $11,631,252 |
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