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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $16,955 | 875 | 875 |
| 2006 | $17,548 | 1,132 | 1,132 |
| 2007 | $13,228 | 1,200 | 1,200 |
| 2008 | $29,486 | 1,819 | 1,819 |
| 2009 | $36,430 | 2,995 | 2,995 |
| 2010 | $32,416 | 1,908 | 1,908 |
| 2011 | $22,825 | 1,575 | 1,575 |
Note: Quantity represents Weight in kilograms
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