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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $471 | 224 | 224 |
| 2006 | $4,441 | 318 | 318 |
| 2007 | $56,991 | 25,800 | 25,800 |
| 2008 | $65,019 | 17,566 | 17,566 |
| 2009 | $101,951 | 45,403 | 45,403 |
| 2010 | $245,554 | 135,158 | 135,158 |
| 2011 | $595,955 | 275,264 | 275,264 |
Note: Quantity represents Weight in kilograms
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