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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Quartz, other than nat. sands | $66,986 | $54,580 | $57,514 | $65,862 | $26,901 | $18,732 | $8,445 |
| Quartzite, cut, by sawing/othw., into blocks/slabs of a rect. (incl. square ... | $212 | $4,011 | $3,299 | $4,272 | $32,852 | $4,483 | $6,327 |
| Total | $67,198 | $58,591 | $60,813 | $70,134 | $59,753 | $23,215 | $14,772 |
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