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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $354,483 | 951,077 | 275,207 |
| 2006 | $213,570 | 155,416 | 191,472 |
| 2007 | $518,627 | 531,254 | 36,178 |
| 2008 | $1,900,190 | 1,997,934 | 4,180,575 |
| 2009 | $1,041,794 | 1,100,470 | 2,238,288 |
| 2010 | $495,252 | 237,146 | 472,244 |
| 2011 | $651,162 | 224,668 | 408,395 |
Note: Quantity represents Number of pairs
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