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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $790,759 | 12,988 | 67,169 |
| 2006 | $1,459,382 | 23,607 | 144,828 |
| 2007 | $546,805 | 8,423 | 33,618 |
| 2008 | $392,445 | 8,320 | 14,844 |
| 2009 | $259,656 | 5,377 | 17,173 |
| 2010 | $669,216 | 8,170 | 34,186 |
| 2011 | $629,851 | 17,072 | 29,171 |
Note: Quantity represents Number of pairs
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