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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Piezo-elec. quartz | $2,014,436 | $2,040,993 | $2,671,803 | $2,244,774 | $1,221,487 | $1,523,021 | $1,509,762 |
| Synthetic/reconstructed precious/semi-precious stones (excl. piezo-electric ... | $16,171,596 | $16,121,681 | $22,400,043 | $27,212,016 | $13,369,238 | $15,039,501 | $25,579,902 |
| Synthetic/reconstructed precious/semi-precious stones, wkd./graded...; ungr ... | $31,403,879 | $23,268,755 | $14,901,847 | $8,441,744 | $6,958,853 | $8,232,710 | $12,347,331 |
| Total | $49,589,911 | $41,431,429 | $39,973,693 | $37,898,534 | $21,549,578 | $24,795,232 | $39,436,995 |
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