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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $60,330 | 28,530 | 28,530 |
| 2006 | $37,404 | 38,964 | 38,964 |
| 2007 | $111,440 | 66,701 | 66,701 |
| 2008 | $106,860 | 92,141 | 92,141 |
| 2009 | $120,693 | 68,016 | 68,016 |
| 2010 | $187,042 | 256,258 | 256,258 |
| 2011 | $270,181 | 362,844 | 362,844 |
Note: Quantity represents Weight in kilograms
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