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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,556,798 | 70,042 | 168,024 |
| 2006 | $6,917,350 | 120,070 | 162,333 |
| 2007 | $18,243,281 | 297,342 | 202,788 |
| 2008 | $7,664,575 | 36,004 | 98,095 |
| 2009 | $7,954,723 | 65,338 | 101,844 |
| 2010 | $10,505,178 | 131,208 | 132,210 |
| 2011 | $14,663,061 | 214,936 | 273,972 |
Note: Quantity represents Number of pairs
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