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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,995 | 7,806 | 7,806 |
| 2006 | $1,317 | 35,864 | 35,864 |
| 2007 | $590 | 51,457 | 51,457 |
| 2008 | $931 | 37,619 | 37,619 |
| 2009 | $1,451 | 1,636 | 1,636 |
| 2010 | $8,229 | 2,577 | 2,577 |
| 2011 | $2,880 | 1,972 | 1,972 |
Note: Quantity represents Weight in kilograms
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