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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $13,000 | 1,225,900 | 1,225,900 |
| 2008 | $45,000 | 156,600 | 156,600 |
| 2009 | $1,953,000 | 17,444,500 | 17,444,500 |
| 2010 | $275,000 | 11,486,700 | 11,486,700 |
| 2011 | $503,000 | 21,941,000 | 21,941,000 |
Note: Quantity represents Weight in kilograms
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