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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $89,000 | 38,100 | 38,100 |
| 2006 | $62,000 | 27,200 | 27,200 |
| 2007 | $63,000 | 26,100 | 26,100 |
| 2008 | $67,000 | 21,100 | 21,100 |
| 2009 | $75,000 | 19,000 | 19,000 |
| 2010 | $61,000 | 20,700 | 20,700 |
| 2011 | $62,000 | 15,800 | 15,800 |
Note: Quantity represents Weight in kilograms
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