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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $40,000 | 142,900 | 142,900 |
| 2006 | $61,000 | 154,200 | 154,200 |
| 2007 | $289,000 | 675,800 | 675,800 |
| 2008 | $491,000 | 1,323,100 | 1,323,100 |
| 2009 | $19,000 | 63,700 | 63,700 |
| 2010 | $5,000 | 19,500 | 19,500 |
| 2011 | $97,000 | 169,000 | 169,000 |
Note: Quantity represents Weight in kilograms
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