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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,405 | 721 | 721 |
| 2006 | $11,012 | 1,354 | 1,354 |
| 2007 | $24,323 | 2,146 | 2,146 |
| 2008 | $36,887 | 16,051 | 16,051 |
| 2009 | $69,421 | 69,421 | 69,421 |
| 2010 | $127,243 | 127,243 | 127,243 |
| 2011 | $164,423 | 143,198 | 143,198 |
Note: Quantity represents Weight in kilograms
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