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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $34,534 | 15,680 | 15,680 |
| 2006 | $32,626 | 16,249 | 16,249 |
| 2007 | $38,719 | 16,958 | 16,958 |
| 2008 | $27,913 | 10,189 | 10,189 |
| 2009 | $34,669 | 16,450 | 16,450 |
| 2010 | $30,426 | 9,529 | 9,529 |
| 2011 | $19,209 | 7,281 | 7,281 |
Note: Quantity represents Weight in kilograms
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