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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,293,765 | 2,638,990 | 1,227,643 |
| 2006 | $4,626,441 | 2,699,375 | 770,931 |
| 2007 | $4,178,521 | 2,974,613 | 532,589 |
| 2008 | $5,302,539 | 3,347,956 | 0 |
| 2009 | $4,567,104 | 3,109,312 | 271,310 |
| 2010 | $6,310,139 | 4,114,800 | 365,749 |
| 2011 | $6,460,606 | 4,824,055 | 374,853 |
Note: Quantity represents Number of pairs
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