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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,011 | 997 | 997 |
| 2006 | $4,122 | 1,322 | 1,322 |
| 2007 | $7,640 | 1,626 | 1,626 |
| 2008 | $14,918 | 16,835 | 16,835 |
| 2009 | $7,958 | 2,480 | 2,480 |
| 2010 | $11,238 | 2,848 | 2,848 |
| 2011 | $18,019 | 3,523 | 3,523 |
Note: Quantity represents Weight in kilograms
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