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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,706 | 480 | 480 |
| 2006 | $7,336 | 2,175 | 2,175 |
| 2007 | $38,675 | 10,920 | 10,920 |
| 2008 | $56,712 | 14,306 | 14,306 |
| 2009 | $35,830 | 11,348 | 11,348 |
| 2010 | $32,034 | 6,899 | 6,899 |
| 2011 | $32,093 | 5,664 | 5,664 |
Note: Quantity represents Weight in kilograms
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