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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,964 | 18,630 | 18,630 |
| 2006 | $87 | 145 | 145 |
| 2007 | $105 | 13,000 | 13,000 |
| 2008 | $526 | 17,882 | 17,882 |
| 2009 | $3,074 | 141,693 | 141,693 |
| 2010 | $4,290 | 327,731 | 327,731 |
| 2011 | $45,221 | 18,360 | 18,360 |
Note: Quantity represents Weight in kilograms
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