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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $255,733 | $736,983 | $1,000,306 | $873,611 | $348,309 | $358,919 | $390,016 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $10,201 | $2,419 | $12,366 | $2,390 | $4,620 | $89,018 | $277,414 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $8,297,984 | $8,190,965 | $11,775,892 | $12,487,211 | $12,893,671 | $14,774,602 | $19,035,548 |
| Total | $8,563,918 | $8,930,367 | $12,788,564 | $13,363,212 | $13,246,600 | $15,222,539 | $19,702,978 |
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