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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,994 | 1,052 | 1,052 |
| 2006 | $2,779 | 418 | 418 |
| 2007 | $12,564 | 25,000 | 25,000 |
| 2008 | $8,065 | 172,540 | 172,540 |
| 2009 | $6,955 | 12,198 | 12,198 |
| 2010 | $11,063 | 28,790 | 28,790 |
| 2011 | $14,731 | 41,711 | 41,711 |
Note: Quantity represents Weight in kilograms
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