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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,000 | 1,626 | 1,626 |
| 2006 | $7,920 | 178 | 178 |
| 2007 | $32,001 | 2,995 | 2,995 |
| 2008 | $35,552 | 6,151 | 6,151 |
| 2009 | $47,797 | 10,419 | 10,419 |
| 2010 | $86,470 | 16,894 | 16,894 |
| 2011 | $157,113 | 112,812 | 112,812 |
Note: Quantity represents Weight in kilograms
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