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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $59,656 | 9,105 | 30,152 |
| 2006 | $8,585 | 1,420 | 5,280 |
| 2007 | $1,908,192 | 118,589 | 22,225 |
| 2008 | $328,338 | 362,500 | 619,410 |
| 2009 | $300,147 | 323,016 | 391,160 |
| 2010 | $423,757 | 300,725 | 354,520 |
| 2011 | $1,529,305 | 345,620 | 34,882 |
Note: Quantity represents Number of pairs
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