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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $437,472 | $92,455 | $3,330 | $449,769 | $7,971 | $36,264 | $12,937 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $106,640 | $493,270 | $702,339 | $611,614 | $837,960 | $914,439 | $1,081,418 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $5,440,626 | $7,507,642 | $7,679,824 | $7,520,221 | $7,097,298 | $7,173,703 | $4,643,572 |
| Total | $5,984,738 | $8,093,367 | $8,385,493 | $8,581,604 | $7,943,229 | $8,124,406 | $5,737,927 |
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