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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $2,517 | $2,289 | $2,869 | $5,207 | $4,846 | $2,896 | $11,692 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $14,815 | $7,796 | | | | $3,243 | $3,931 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $12,611 | $18,918 | $28,565 | $22,923 | $13,422 | $17,687 | $19,556 |
| Total | $29,943 | $29,003 | $31,434 | $28,130 | $18,268 | $23,826 | $35,179 |
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