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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,038,261 | 557,638 | 4,319,584 |
| 2006 | $7,366,131 | 503,766 | 7,123,848 |
| 2007 | $7,436,839 | 535,571 | 5,911,625 |
| 2008 | $4,215,083 | 234,156 | 1,281,064 |
| 2009 | $4,695,650 | 254,516 | 1,372,788 |
| 2010 | $6,659,568 | 313,056 | 2,700,198 |
| 2011 | $9,958,262 | 433,134 | 3,605,856 |
Note: Quantity represents Number of pairs
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