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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $9,549,525 | $7,035,555 | $8,015,514 | $8,582,703 | $11,961,931 | $14,129,557 | $15,558,315 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $9,413,062 | $7,387,729 | $9,299,853 | $16,335,532 | $5,883,152 | $13,905,951 | $20,495,494 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $37,358,000 | $56,383,395 | $53,276,948 | $48,960,390 | $27,079,021 | $72,840,508 | $112,848,921 |
| Total | $56,320,587 | $70,806,679 | $70,592,315 | $73,878,625 | $44,924,104 | $100,876,016 | $148,902,730 |
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