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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $87,097 | $222,195 | $96,054 | $63,430 | | $13,256 | $26,435 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $10,423,017 | $9,933,510 | $11,977,925 | $12,407,203 | $4,140,189 | $11,565,517 | $14,162,093 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $28,318,954 | $29,923,552 | $32,009,286 | $38,388,425 | $23,835,260 | $18,929,007 | $20,869,575 |
| Total | $38,829,068 | $40,079,257 | $44,083,265 | $50,859,058 | $27,975,449 | $30,507,780 | $35,058,103 |
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