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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $28,318 | 4,491 | 4,491 |
| 2006 | $57,656 | 5,623 | 5,623 |
| 2007 | $91,562 | 39,041 | 39,041 |
| 2008 | $20,954 | 5,874 | 5,874 |
| 2009 | $86,964 | 9,374 | 9,374 |
| 2010 | $126,285 | 36,593 | 36,593 |
| 2011 | $240,160 | 63,810 | 63,810 |
Note: Quantity represents Weight in kilograms
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