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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $549 | 258 | 258 |
| 2006 | $23,015 | 29,171 | 29,171 |
| 2007 | $34,811 | 29,442 | 29,442 |
| 2008 | $168,192 | 157,047 | 157,047 |
| 2009 | $108,956 | 108,548 | 108,548 |
| 2010 | $244,313 | 189,608 | 189,608 |
| 2011 | $31,987 | 35,560 | 35,560 |
Note: Quantity represents Weight in kilograms
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