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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $38,165 | 145,210 | 145,210 |
| 2006 | $46,057 | 84,670 | 84,670 |
| 2007 | $82,267 | 243,906 | 243,906 |
| 2008 | $69,529 | 212,162 | 212,162 |
| 2009 | $122,823 | 364,070 | 364,070 |
| 2010 | $94,349 | 323,850 | 323,850 |
| 2011 | $40,188 | 96,069 | 96,069 |
Note: Quantity represents Weight in kilograms
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