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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $16,217 | 6,717 | 6,717 |
| 2006 | $26,343 | 13,451 | 13,451 |
| 2007 | $15,233 | 8,438 | 8,438 |
| 2008 | $55,515 | 29,215 | 29,215 |
| 2009 | $91,092 | 113,373 | 113,373 |
| 2010 | $89,890 | 35,718 | 35,718 |
| 2011 | $105,003 | 47,970 | 47,970 |
Note: Quantity represents Weight in kilograms
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