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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $74,000 | 33,900 | 33,900 |
| 2006 | $75,000 | 42,200 | 42,200 |
| 2007 | $268,000 | 446,100 | 446,100 |
| 2008 | $581,000 | 387,900 | 387,900 |
| 2009 | $32,000 | 14,600 | 14,600 |
| 2010 | $72,000 | 49,500 | 49,500 |
| 2011 | $140,000 | 141,800 | 141,800 |
Note: Quantity represents Weight in kilograms
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