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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $22,634,579 | $21,757,686 | $23,713,926 | $21,124,055 | $20,704,566 | $23,566,153 | $30,162,022 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $11,734,179 | $8,675,115 | $6,095,808 | $6,883,883 | $5,179,772 | $8,152,621 | $6,979,768 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $18,248,403 | $23,070,921 | $21,789,041 | $24,118,407 | $22,395,546 | $35,364,617 | $90,371,336 |
| Total | $52,617,161 | $53,503,722 | $51,598,775 | $52,126,345 | $48,279,884 | $67,083,391 | $127,513,126 |
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