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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $990,441 | $1,217,881 | $1,295,664 | $920,931 | $735,617 | $775,404 | $587,182 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $3,634,521 | $2,459,618 | $2,072,513 | $3,086,962 | $1,494,829 | $1,676,728 | $2,082,964 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $10,647,244 | $12,408,579 | $14,580,335 | $15,974,106 | $13,336,877 | $12,529,729 | $15,979,131 |
| Total | $15,272,206 | $16,086,078 | $17,948,512 | $19,981,999 | $15,567,323 | $14,981,861 | $18,649,277 |
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