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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $18,188 | 2,519 | 2,519 |
| 2006 | $21,326 | 1,642 | 1,642 |
| 2007 | $47,019 | 8,034 | 8,034 |
| 2008 | $184,541 | 9,851 | 9,851 |
| 2009 | $49,412 | 2,366 | 2,366 |
| 2010 | $208,270 | 29,042 | 29,042 |
| 2011 | $214,962 | 16,831 | 16,831 |
Note: Quantity represents Weight in kilograms
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