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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $48,880 | 100,502 | 100,502 |
| 2006 | $549 | 2,000 | 2,000 |
| 2007 | $110,016 | 155,904 | 155,904 |
| 2008 | $5,100,927 | 5,093,160 | 5,093,160 |
| 2009 | $990,271 | 2,092,858 | 2,092,858 |
| 2010 | $462,639 | 492,856 | 492,856 |
| 2011 | $72,095 | 69,877 | 69,877 |
Note: Quantity represents Weight in kilograms
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