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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $16,625 | 30,628 | 30,628 |
| 2006 | $13,732 | 12,500 | 12,500 |
| 2007 | $10,810 | 10,400 | 10,400 |
| 2008 | $2,638 | 2,340 | 2,340 |
| 2009 | $12,240 | 12,715 | 12,715 |
| 2010 | $1,819 | 707 | 707 |
| 2011 | $19 | 20 | 20 |
Note: Quantity represents Weight in kilograms
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