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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $362,256 | 28,520 | 329,913 |
| 2006 | $418,042 | 32,912 | 352,855 |
| 2007 | $391,891 | 237,810 | 366,325 |
| 2008 | $256,004 | 155,472 | 28,054 |
| 2009 | $404,145 | 85,794 | 112,599 |
| 2010 | $340,283 | 169,472 | 284,374 |
| 2011 | $446,261 | 186,754 | 72,382 |
Note: Quantity represents Number of pairs
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