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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,674 | 61,940 | 61,940 |
| 2006 | $966 | 3,420 | 3,420 |
| 2008 | $1,767 | 5,750 | 5,750 |
| 2009 | $21,947 | 541,580 | 541,580 |
| 2010 | $239,110 | 4,270,000 | 4,270,000 |
| 2011 | $175,473 | 5,015,000 | 5,015,000 |
Note: Quantity represents Weight in kilograms
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