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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $2,566 | $17,350 | $86,720 | $110,746 | $58,393 | $91,581 | $24,191 |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $44,018 | $42,565 | $59,313 | $134,426 | $24,719 | $88,627 | $30,878 |
| Total | $46,584 | $59,915 | $146,033 | $245,172 | $83,112 | $180,208 | $55,069 |
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