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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $1,247,794 | $676,373 | $345,064 | $500,534 | $885,669 | $1,093,277 | $470,528 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $205,715 | $376,681 | $480,209 | $195,835 | $396,000 | $713,304 | $1,340,990 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $4,592,839 | $4,341,701 | $4,718,784 | $4,835,794 | $4,120,730 | $3,826,717 | $2,680,087 |
| Total | $6,046,348 | $5,394,755 | $5,544,057 | $5,532,163 | $5,402,399 | $5,633,298 | $4,491,605 |
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