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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $34,574 | 11,819 | 11,819 |
| 2006 | $52,421 | 80,387 | 80,387 |
| 2007 | $49,399 | 62,290 | 62,290 |
| 2008 | $176,075 | 158,012 | 158,012 |
| 2009 | $204,580 | 168,733 | 168,733 |
| 2010 | $320,646 | 243,366 | 243,366 |
Note: Quantity represents Weight in kilograms
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