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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $529 | 179 | 179 |
| 2006 | $2,386 | 3,021 | 3,021 |
| 2007 | $16,671 | 16,188 | 16,188 |
| 2008 | $2,596 | 1,863 | 1,863 |
| 2009 | $8,039 | 7,837 | 7,837 |
| 2010 | $14,881 | 11,163 | 11,163 |
| 2011 | $7,508 | 4,436 | 4,436 |
Note: Quantity represents Weight in kilograms
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