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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,920,040 | 167,393 | 205,371 |
| 2006 | $706,064 | 30,150 | 147,329 |
| 2007 | $1,290,456 | 49,519 | 139,192 |
| 2008 | $2,266,366 | 69,121 | 136,778 |
| 2009 | $937,630 | 20,356 | 35,567 |
| 2010 | $761,304 | 21,406 | 88,319 |
Note: Quantity represents Number of pairs
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