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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,160 | 3,736 | 3,736 |
| 2006 | $3,519 | 20,000 | 20,000 |
| 2007 | $10,388 | 105,650 | 105,650 |
| 2008 | $19,652 | 71,845 | 71,845 |
| 2009 | $15,910 | 29,058 | 29,058 |
| 2010 | $5,649 | 1,668 | 1,668 |
| 2011 | $5,973 | 2,500 | 2,500 |
Note: Quantity represents Weight in kilograms
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