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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,363,797 | 59,816 | 58,513 |
| 2006 | $1,381,019 | 43,694 | 22,203 |
| 2007 | $1,248,208 | 34,784 | 20,960 |
| 2008 | $1,283,226 | 29,081 | 16,390 |
| 2009 | $1,221,715 | 23,747 | 9,860 |
| 2010 | $2,000,612 | 39,898 | 21,124 |
| 2011 | $2,338,884 | 51,801 | 23,856 |
Note: Quantity represents Number of pairs
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