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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,909,544 | 467,334 | 957,746 |
| 2006 | $4,877,353 | 390,611 | 684,424 |
| 2007 | $1,238,442 | 69,788 | 191,236 |
| 2008 | $1,191,263 | 56,168 | 107,088 |
| 2009 | $740,692 | 39,760 | 126,438 |
| 2010 | $81,521 | 6,617 | 31,294 |
| 2011 | $173,498 | 14,293 | 27,377 |
Note: Quantity represents Number of pairs
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