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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $770 | 8,100 | 8,100 |
| 2006 | $7,699 | 109,990 | 109,990 |
| 2007 | $140 | 2,000 | 2,000 |
| 2008 | $999 | 19,970 | 19,970 |
| 2009 | $5,316 | 115,800 | 115,800 |
| 2010 | $35,645 | 585,800 | 585,800 |
| 2011 | $359 | 1,092 | 1,092 |
Note: Quantity represents Weight in kilograms
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