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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,986,639 | 1,892,080 | 644,827 |
| 2006 | $5,407,997 | 778,332 | 868,391 |
| 2007 | $4,699,712 | 418,257 | 347,326 |
| 2008 | $3,597,489 | 261,388 | 281,410 |
| 2009 | $3,788,495 | 298,625 | 308,435 |
| 2010 | $3,801,738 | 359,415 | 280,989 |
Note: Quantity represents Number of pairs
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