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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $28,728 | 2,811 | 2,811 |
| 2006 | $30,156 | 8,243 | 8,243 |
| 2007 | $51,045 | 9,741 | 9,741 |
| 2008 | $17,395 | 798 | 798 |
| 2009 | $19,923 | 2,148 | 2,148 |
| 2010 | $43,293 | 9,777 | 9,777 |
| 2011 | $56,444 | 21,422 | 21,422 |
Note: Quantity represents Weight in kilograms
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