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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,668 | 4,445 | 4,445 |
| 2006 | $6,841 | 3,682 | 3,682 |
| 2007 | $7,029 | 3,100 | 3,100 |
| 2008 | $21,486 | 15,825 | 15,825 |
| 2009 | $41,265 | 25,804 | 25,804 |
| 2010 | $52,656 | 29,421 | 29,421 |
| 2011 | $68,330 | 37,762 | 37,762 |
Note: Quantity represents Weight in kilograms
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