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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $643,135 | 448,764 | 70,532 |
| 2006 | $3,746,190 | 2,256,392 | 410,843 |
| 2007 | $4,162,560 | 2,330,501 | 337,711 |
| 2008 | $3,745,046 | 1,885,728 | 225,720 |
| 2009 | $3,410,948 | 1,807,600 | 162,526 |
| 2010 | $41,214 | 10,908 | 2,012 |
| 2011 | $647,499 | 279,264 | 37,330 |
Note: Quantity represents Number of pairs
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