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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $228,410 | 139,544 | 139,544 |
| 2006 | $200,479 | 136,729 | 136,729 |
| 2007 | $106,328 | 34,538 | 34,538 |
| 2008 | $38,572 | 4,134 | 4,134 |
| 2009 | $143,930 | 7,493 | 7,493 |
| 2010 | $92,363 | 10,914 | 10,914 |
| 2011 | $39,566 | 2,845 | 2,845 |
Note: Quantity represents Weight in kilograms
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