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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $21,840 | 6,139 | 6,139 |
| 2006 | $22,075 | 9,213 | 9,213 |
| 2007 | $19,285 | 10,861 | 10,861 |
| 2008 | $15,531 | 10,394 | 10,394 |
| 2009 | $14,561 | 6,284 | 6,284 |
| 2010 | $14,956 | 6,770 | 6,770 |
| 2011 | $14,529 | 10,392 | 10,392 |
Note: Quantity represents Weight in kilograms
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