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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $70 | 238 | 238 |
| 2006 | $637 | 239 | 239 |
| 2007 | $101,778 | 102,433 | 102,433 |
| 2008 | $152,813 | 121,058 | 121,058 |
| 2009 | $239,537 | 279,689 | 279,689 |
| 2010 | $200,749 | 140,727 | 140,727 |
| 2011 | $133,917 | 99,671 | 99,671 |
Note: Quantity represents Weight in kilograms
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