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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $102,443 | 2,941 | 5,997 |
| 2006 | $204,881 | 9,554 | 8,474 |
| 2007 | $168,106 | 10,678 | 10,305 |
| 2008 | $248,485 | 12,485 | 12,013 |
| 2009 | $155,881 | 7,315 | 9,005 |
| 2010 | $157,589 | 4,727 | 6,184 |
| 2011 | $127,339 | 2,730 | 3,351 |
Note: Quantity represents Number of pairs
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