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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $10,699 | 2,269 | 2,269 |
| 2006 | $17,916 | 7,111 | 7,111 |
| 2007 | $30,390 | 16,745 | 16,745 |
| 2008 | $19,290 | 16,259 | 16,259 |
| 2009 | $53,696 | 28,182 | 28,182 |
| 2010 | $18,067 | 14,499 | 14,499 |
| 2011 | $19,060 | 20,825 | 20,825 |
Note: Quantity represents Weight in kilograms
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