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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $12,102 | 77 | 77 |
| 2006 | $16,744 | 2,396 | 2,396 |
| 2007 | $33,568 | 3,823 | 3,823 |
| 2008 | $68,595 | 15,797 | 15,797 |
| 2009 | $58,504 | 35,435 | 35,435 |
| 2010 | $919,092 | 962,244 | 962,244 |
| 2011 | $72,902 | 35,510 | 35,510 |
Note: Quantity represents Weight in kilograms
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