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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,397 | 1,318 | 1,318 |
| 2006 | $4,211 | 2,928 | 2,928 |
| 2007 | $6,919 | 5,171 | 5,171 |
| 2008 | $9,300 | 31,054 | 31,054 |
| 2009 | $7,014 | 101,000 | 101,000 |
| 2010 | $10,052 | 7,949 | 7,949 |
| 2011 | $7,027 | 6,947 | 6,947 |
Note: Quantity represents Weight in kilograms
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