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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $247,949 | 56,132 | 31,361 |
| 2006 | $602,297 | 119,951 | 65,550 |
| 2007 | $704,213 | 103,941 | 67,516 |
| 2008 | $962,726 | 122,581 | 128,088 |
| 2009 | $568,349 | 62,438 | 51,802 |
| 2010 | $455,460 | 40,717 | 35,765 |
| 2011 | $663,328 | 41,741 | 38,487 |
Note: Quantity represents Number of pairs
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