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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $22,000 | 7,100 | 7,100 |
| 2006 | $17,000 | 5,300 | 5,300 |
| 2007 | $13,000 | 4,200 | 4,200 |
| 2008 | $11,000 | 3,190 | 3,190 |
| 2009 | $10,000 | 2,700 | 2,700 |
| 2010 | $15,000 | 4,200 | 4,200 |
| 2011 | $15,000 | 4,000 | 4,000 |
Note: Quantity represents Weight in kilograms
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