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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $56,900 | 31,368 | 31,368 |
| 2006 | $27,900 | 3,596 | 3,596 |
| 2007 | $23,000 | 2,898 | 2,898 |
| 2008 | $15,900 | 1,718 | 1,718 |
| 2009 | $13,900 | 1,283 | 1,283 |
| 2010 | $24,400 | 2,504 | 2,504 |
| 2011 | $14,000 | 991 | 991 |
Note: Quantity represents Weight in kilograms
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