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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,519 | 1,038 | 1,038 |
| 2006 | $7,736 | 598 | 598 |
| 2007 | $32,370 | 5,311 | 5,311 |
| 2008 | $148,150 | 18,747 | 18,747 |
| 2009 | $92,112 | 9,878 | 9,878 |
| 2010 | $39,167 | 4,271 | 4,271 |
| 2011 | $17,350 | 2,062 | 2,062 |
Note: Quantity represents Weight in kilograms
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