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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $26,700 | 14,156 | 14,156 |
| 2006 | $31,300 | 11,803 | 11,803 |
| 2007 | $37,200 | 13,749 | 13,749 |
| 2008 | $41,900 | 13,205 | 13,205 |
| 2009 | $14,300 | 4,411 | 4,411 |
| 2010 | $10,600 | 1,402 | 1,402 |
| 2011 | $15,600 | 4,331 | 4,331 |
Note: Quantity represents Weight in kilograms
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