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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,186,077 | 93,218 | 99,566 |
| 2006 | $2,680,809 | 114,315 | 108,159 |
| 2007 | $2,733,239 | 93,229 | 87,122 |
| 2008 | $2,923,655 | 102,413 | 120,819 |
| 2009 | $2,603,148 | 83,713 | 104,507 |
| 2010 | $2,525,866 | 77,607 | 112,649 |
| 2011 | $2,415,309 | 71,159 | 110,843 |
Note: Quantity represents Number of pairs
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