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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $24,433 | 9,623 | 9,623 |
| 2006 | $12,323 | 11,759 | 11,759 |
| 2007 | $10,409 | 4,677 | 4,677 |
| 2008 | $69,163 | 27,630 | 27,630 |
| 2009 | $22,980 | 9,791 | 9,791 |
| 2010 | $20,834 | 6,472 | 6,472 |
| 2011 | $19,883 | 5,900 | 5,900 |
Note: Quantity represents Weight in kilograms
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