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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $292 | 1,728 | 1,728 |
| 2007 | $20,149 | 168,600 | 168,600 |
| 2008 | $32,120 | 181,000 | 181,000 |
| 2009 | $150,680 | 468,020 | 468,020 |
| 2010 | $1,099,903 | 2,848,023 | 2,848,023 |
| 2011 | $1,596,519 | 4,007,456 | 4,007,456 |
Note: Quantity represents Weight in kilograms
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