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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $758,361 | $1,176,995 | $1,038,349 | $1,002,796 | $664,001 | $407,352 | $341,376 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $1,666,764 | $1,603,680 | $3,022,523 | $2,685,445 | $1,277,074 | $1,594,594 | $3,402,271 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $7,375,262 | $7,616,517 | $6,157,231 | $5,880,289 | $4,371,116 | $5,172,204 | $5,246,377 |
| Total | $9,800,387 | $10,397,192 | $10,218,103 | $9,568,530 | $6,312,191 | $7,174,150 | $8,990,024 |
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