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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $666 | 1,150 | 1,150 |
| 2006 | $7,689 | 20,198 | 20,198 |
| 2007 | $15,822 | 37,900 | 37,900 |
| 2008 | $66,720 | 101,979 | 101,979 |
| 2009 | $72,096 | 111,413 | 111,413 |
| 2010 | $28,493 | 41,451 | 41,451 |
| 2011 | $14,014 | 17,760 | 17,760 |
Note: Quantity represents Weight in kilograms
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