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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,900 | 2,769 | 2,769 |
| 2006 | $5,319 | 3,162 | 3,162 |
| 2007 | $6,025 | 3,539 | 3,539 |
| 2008 | $7,724 | 5,288 | 5,288 |
| 2009 | $9,833 | 4,579 | 4,579 |
| 2010 | $31,274 | 6,418 | 6,418 |
| 2011 | $14,389 | 6,312 | 6,312 |
Note: Quantity represents Weight in kilograms
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