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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $13,180 | 1,411 | 1,411 |
| 2006 | $22,989 | 29,664 | 29,664 |
| 2007 | $10,218 | 12,042 | 12,042 |
| 2008 | $30,349 | 41,119 | 41,119 |
| 2009 | $38,194 | 67,049 | 67,049 |
| 2010 | $27,611 | 25,234 | 25,234 |
| 2011 | $34,071 | 51,480 | 51,480 |
Note: Quantity represents Weight in kilograms
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