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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $961 | 260 | 260 |
| 2006 | $12,749 | 3,474 | 3,474 |
| 2007 | $14,087 | 5,540 | 5,540 |
| 2008 | $14,093 | 8,071 | 8,071 |
| 2009 | $24,603 | 7,003 | 7,003 |
| 2010 | $34,586 | 9,863 | 9,863 |
| 2011 | $19,924 | 7,487 | 7,487 |
Note: Quantity represents Weight in kilograms
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