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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,260 | 111 | 111 |
| 2006 | $28,375 | 4,618 | 4,618 |
| 2007 | $46,477 | 10,290 | 10,290 |
| 2008 | $46,706 | 11,114 | 11,114 |
| 2009 | $63,153 | 14,135 | 14,135 |
| 2010 | $45,327 | 6,555 | 6,555 |
| 2011 | $18,761 | 4,712 | 4,712 |
Note: Quantity represents Weight in kilograms
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