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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $12,242 | 870 | 870 |
| 2006 | $13,280 | 704 | 704 |
| 2007 | $28,591 | 1,644 | 1,644 |
| 2008 | $79,487 | 1,933 | 1,933 |
| 2009 | $33,887 | 1,443 | 1,443 |
| 2010 | $25,293 | 2,860 | 2,860 |
| 2011 | $18,095 | 6,150 | 6,150 |
Note: Quantity represents Weight in kilograms
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