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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $46,796 | 36,561 | 36,561 |
| 2006 | $47,258 | 121,641 | 121,641 |
| 2007 | $87,400 | 186,559 | 186,559 |
| 2008 | $7,246 | 5,086 | 5,086 |
| 2009 | $159,267 | 670,914 | 670,914 |
| 2010 | $61,859 | 150,487 | 150,487 |
| 2011 | $73,104 | 122,129 | 122,129 |
Note: Quantity represents Weight in kilograms
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