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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $18,530 | 926 | 926 |
| 2006 | $16,620 | 1,718 | 1,718 |
| 2007 | $21,803 | 1,447 | 1,447 |
| 2008 | $80,447 | 45,240 | 45,240 |
| 2009 | $99,056 | 42,741 | 42,741 |
| 2010 | $62,979 | 23,463 | 23,463 |
| 2011 | $56,771 | 20,950 | 20,950 |
Note: Quantity represents Weight in kilograms
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