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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $77 | 169 | 169 |
| 2006 | $451 | 288 | 288 |
| 2007 | $2,449 | 1,183 | 1,183 |
| 2008 | $949 | 834 | 834 |
| 2009 | $48,788 | 269,781 | 269,781 |
| 2010 | $140,484 | 504,004 | 504,004 |
| 2011 | $1,116,191 | 6,730,183 | 6,730,183 |
Note: Quantity represents Weight in kilograms
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