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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $9,121 | 19,500 | 19,500 |
| 2006 | $5,112 | 28,700 | 28,700 |
| 2007 | $3,832 | 8,500 | 8,500 |
| 2008 | $6,962 | 7,960 | 7,960 |
| 2009 | $12,579 | 24,580 | 24,580 |
| 2010 | $7,727 | 31,750 | 31,750 |
| 2011 | $3,299 | 5,916 | 5,916 |
Note: Quantity represents Weight in kilograms
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