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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,407,910 | 279,190 | 561,718 |
| 2006 | $16,496,344 | 704,279 | 1,954,190 |
| 2007 | $8,978,520 | 269,334 | 885,237 |
| 2008 | $19,816,123 | 406,890 | 2,115,163 |
| 2009 | $13,323,402 | 245,016 | 1,175,113 |
| 2010 | $8,960,903 | 131,011 | 950,502 |
| 2011 | $15,824,641 | 326,309 | 501,481 |
Note: Quantity represents Number of pairs
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