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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,982 | 554 | 554 |
| 2006 | $1,483 | 286 | 286 |
| 2007 | $42,320 | 1,640,108 | 1,640,108 |
| 2008 | $299,474 | 9,396,819 | 9,396,819 |
| 2009 | $1,856,475 | 50,768,023 | 50,768,023 |
| 2010 | $4,331,884 | 124,787,611 | 124,787,611 |
| 2011 | $3,871,398 | 106,431,890 | 106,431,890 |
Note: Quantity represents Weight in kilograms
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