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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $7,190 | 1,559 | 1,559 |
| 2006 | $4,003 | 810 | 810 |
| 2007 | $9,014 | 1,925 | 1,925 |
| 2008 | $11,836 | 1,457 | 1,457 |
| 2009 | $7,556 | 1,193 | 1,193 |
| 2010 | $17,383 | 3,318 | 3,318 |
| 2011 | $19,888 | 4,105 | 4,105 |
Note: Quantity represents Weight in kilograms
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