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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Piezo-elec. quartz | $153,333 | $186,613 | $211,435 | $367,416 | $122,451 | $85,384 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $1,478,147 | $817,879 | $3,934,402 | $1,113,859 | $2,202,822 | $9,199,089 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $1,828,259 | $1,562,645 | $11,809,227 | $13,586,754 | $9,138,708 | $9,811,265 |
| Total | $3,459,739 | $2,567,137 | $15,955,064 | $15,068,029 | $11,463,981 | $19,095,738 |
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