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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,433,653 | 466,712 | 270,746 |
| 2006 | $7,365,544 | 632,648 | 320,311 |
| 2007 | $8,401,604 | 765,736 | 323,285 |
| 2008 | $8,645,799 | 807,621 | 313,083 |
| 2009 | $8,197,971 | 767,323 | 286,731 |
| 2010 | $10,362,754 | 988,494 | 366,131 |
| 2011 | $12,248,685 | 1,329,464 | 403,462 |
Note: Quantity represents Number of pairs
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