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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $15,700 | 31,000 | 31,000 |
| 2006 | $200 | 410 | 410 |
| 2007 | $72,900 | 56,000 | 56,000 |
| 2008 | $27,100 | 22,575 | 22,575 |
| 2009 | $83,100 | 36,940 | 36,940 |
| 2010 | $121,700 | 140,336 | 140,336 |
| 2011 | $268,700 | 198,625 | 198,625 |
Note: Quantity represents Weight in kilograms
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