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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $2,037,711 | $784,222 | $972,522 | $26,661 | $314,483 | $1,172,930 | $1,214,572 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $2,327,094 | $1,050,509 | $2,072,953 | $1,091,840 | $959,847 | $1,206,951 | $1,305,124 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $5,519,412 | $3,423,876 | $3,174,661 | $3,131,620 | $2,706,373 | $2,883,440 | $2,722,929 |
| Total | $9,884,217 | $5,258,607 | $6,220,136 | $4,250,121 | $3,980,703 | $5,263,321 | $5,242,625 |
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