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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,446 | 3,506 | 3,506 |
| 2006 | $10,868 | 4,531 | 4,531 |
| 2007 | $31,333 | 27,763 | 27,763 |
| 2008 | $31,660 | 47,492 | 47,492 |
| 2009 | $51,796 | 54,610 | 54,610 |
| 2010 | $160,985 | 171,320 | 171,320 |
| 2011 | $116,593 | 109,388 | 109,388 |
Note: Quantity represents Weight in kilograms
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