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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $17,502 | 18,015 | 18,015 |
| 2006 | $13,431 | 12,869 | 12,869 |
| 2007 | $9,298 | 503 | 503 |
| 2008 | $5,032 | 2,226 | 2,226 |
| 2009 | $32,732 | 23,860 | 23,860 |
| 2010 | $30,354 | 25,165 | 25,165 |
| 2011 | $101,710 | 71,461 | 71,461 |
Note: Quantity represents Weight in kilograms
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