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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,979 | 1,134 | 1,134 |
| 2006 | $1,618 | 1,049 | 1,049 |
| 2007 | $1,599 | 812 | 812 |
| 2008 | $2,154 | 1,478 | 1,478 |
| 2009 | $8,763 | 9,415 | 9,415 |
| 2010 | $11,825 | 7,563 | 7,563 |
| 2011 | $13,074 | 12,367 | 12,367 |
Note: Quantity represents Weight in kilograms
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