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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $39 | 2 | 2 |
| 2006 | $71,569,998 | 94,722,474 | 94,722,474 |
| 2007 | $40,065,073 | 50,565,068 | 50,565,068 |
| 2008 | $14,873,310 | 16,168,649 | 16,168,649 |
| 2009 | $7,932,769 | 11,029,570 | 11,029,570 |
| 2010 | $1,665,858 | 2,004,450 | 2,004,450 |
| 2011 | $6,976 | 171 | 171 |
Note: Quantity represents Weight in kilograms
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