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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,810 | 332 | 332 |
| 2006 | $7,760 | 6,514 | 6,514 |
| 2007 | $11,081 | 3,329 | 3,329 |
| 2008 | $49,127 | 8,156 | 8,156 |
| 2009 | $13,818 | 1,575 | 1,575 |
| 2010 | $19,140 | 2,702 | 2,702 |
| 2011 | $9,335 | 1,324 | 1,324 |
Note: Quantity represents Weight in kilograms
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