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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $63,000 | 6,700 | 6,700 |
| 2006 | $143,000 | 17,000 | 17,000 |
| 2007 | $519,000 | 54,600 | 54,600 |
| 2008 | $373,000 | 37,900 | 37,900 |
| 2009 | $285,000 | 31,000 | 31,000 |
| 2010 | $235,000 | 22,500 | 22,500 |
| 2011 | $194,000 | 17,600 | 17,600 |
Note: Quantity represents Weight in kilograms
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