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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $14,801 | 12,129 | 12,129 |
| 2006 | $34,548 | 31,370 | 31,370 |
| 2007 | $41,462 | 39,803 | 39,803 |
| 2008 | $13,008 | 6,284 | 6,284 |
| 2009 | $32,415 | 17,575 | 17,575 |
| 2010 | $13,739 | 4,796 | 4,796 |
| 2011 | $13,057 | 4,672 | 4,672 |
Note: Quantity represents Weight in kilograms
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