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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,740 | 16,768 | 16,768 |
| 2006 | $4,834 | 12,084 | 12,084 |
| 2007 | $3,281 | 8,510 | 8,510 |
| 2008 | $7,176 | 17,940 | 17,940 |
| 2009 | $6,920 | 20,240 | 20,240 |
| 2010 | $17,857 | 54,050 | 54,050 |
| 2011 | $25,817 | 85,514 | 85,514 |
Note: Quantity represents Weight in kilograms
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