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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $607,283 | 8,533 | 257,432 |
| 2006 | $212,182 | 114,067 | 15,617 |
| 2007 | $389,074 | 34,347 | 90,287 |
| 2008 | $336,105 | 50,217 | 36,696 |
| 2009 | $320,983 | 20,535 | 58,977 |
| 2010 | $228,721 | 14,972 | 0 |
| 2011 | $249,652 | 12,369 | 0 |
Note: Quantity represents Number of pairs
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