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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $10,200,121 | 317,754 | 450,884 |
| 2006 | $14,765,782 | 822,771 | 650,327 |
| 2007 | $26,124,046 | 1,140,976 | 977,896 |
| 2008 | $18,863,287 | 469,483 | 544,571 |
| 2009 | $12,713,468 | 512,667 | 488,264 |
| 2010 | $21,051,895 | 609,908 | 493,744 |
| 2011 | $45,785,921 | 1,175,458 | 903,548 |
Note: Quantity represents Number of pairs
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