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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $450 | 7,070 | 7,070 |
| 2006 | $3,931 | 193,293 | 193,293 |
| 2007 | $5,400 | 297,506 | 297,506 |
| 2008 | $3,264 | 16,594 | 16,594 |
| 2009 | $22 | 29 | 29 |
| 2010 | $612 | 87,337 | 87,337 |
| 2011 | $9,290 | 540,255 | 540,255 |
Note: Quantity represents Weight in kilograms
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