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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,068 | 68 | 68 |
| 2006 | $2,011 | 16,000 | 16,000 |
| 2007 | $7,337 | 11,957 | 11,957 |
| 2008 | $4,417 | 14,250 | 14,250 |
| 2009 | $3,239 | 10,000 | 10,000 |
| 2010 | $41,247 | 338,629 | 338,629 |
| 2011 | $41,257 | 140,000 | 140,000 |
Note: Quantity represents Weight in kilograms
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