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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $8,600 | 2,499 | 2,499 |
| 2006 | $13,300 | 2,104 | 2,104 |
| 2007 | $20,900 | 3,458 | 3,458 |
| 2008 | $36,400 | 4,855 | 4,855 |
| 2009 | $30,700 | 5,611 | 5,611 |
| 2010 | $69,500 | 10,260 | 10,260 |
| 2011 | $99,100 | 12,729 | 12,729 |
Note: Quantity represents Weight in kilograms
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