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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $12,065 | 4,723 | 4,723 |
| 2006 | $2,494 | 976 | 976 |
| 2007 | $3,353 | 15,000 | 15,000 |
| 2008 | $20,162 | 43,588 | 43,588 |
| 2009 | $15,452 | 52,534 | 52,534 |
| 2010 | $29,225 | 108,058 | 108,058 |
| 2011 | $11,677 | 49,602 | 49,602 |
Note: Quantity represents Weight in kilograms
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