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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,834 | 447 | 447 |
| 2006 | $13,490 | 699 | 699 |
| 2007 | $10,480 | 1,256 | 1,256 |
| 2008 | $7,272 | 1,825 | 1,825 |
| 2009 | $25,952 | 11,226 | 11,226 |
| 2010 | $64,256 | 9,370 | 9,370 |
| 2011 | $29,987 | 4,584 | 4,584 |
Note: Quantity represents Weight in kilograms
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