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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $10,589 | 924 | 924 |
| 2006 | $15,909 | 1,400 | 1,400 |
| 2007 | $20,087 | 1,368 | 1,368 |
| 2008 | $22,409 | 2,080 | 2,080 |
| 2009 | $21,018 | 1,866 | 1,866 |
| 2010 | $30,278 | 4,021 | 4,021 |
| 2011 | $33,394 | 3,697 | 3,697 |
Note: Quantity represents Weight in kilograms
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