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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,319,110 | 801,554 | 1,094,629 |
| 2006 | $3,492,779 | 603,377 | 869,957 |
| 2007 | $4,189,423 | 798,807 | 1,075,690 |
| 2008 | $7,287,247 | 1,178,847 | 1,596,528 |
| 2009 | $5,227,030 | 693,946 | 931,471 |
| 2010 | $5,635,378 | 658,626 | 343,529 |
| 2011 | $6,075,626 | 457,994 | 685,960 |
Note: Quantity represents Number of pairs
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