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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $111,400,000 | 137,705,036 | 0 |
| 2006 | $211,205,000 | 261,077,130 | 0 |
| 2007 | $2,000 | 1,227 | 0 |
| 2008 | $32,477,000 | 17,295,894 | 0 |
| 2009 | $152,756,000 | 0 | 0 |
| 2010 | $29,182,000 | 0 | 0 |
| 2011 | $14,000 | 6,853 | 1 |
Note: Quantity represents No Quantity
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