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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $40,000 | 177,600 | 177,600 |
| 2006 | $69,000 | 301,400 | 301,400 |
| 2007 | $155,000 | 320,700 | 320,700 |
| 2008 | $148,000 | 360,300 | 360,300 |
| 2009 | $256,000 | 809,300 | 809,300 |
| 2010 | $21,000 | 97,400 | 97,400 |
| 2011 | $123,000 | 590,300 | 590,300 |
Note: Quantity represents Weight in kilograms
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