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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $25,100 | 27,426 | 27,426 |
| 2006 | $21,500 | 22,695 | 22,695 |
| 2007 | $19,100 | 33,150 | 33,150 |
| 2008 | $68,400 | 170,455 | 170,455 |
| 2009 | $452,200 | 2,059,185 | 2,059,185 |
| 2010 | $1,055,800 | 4,224,520 | 4,224,520 |
| 2011 | $6,855,400 | 8,460,579 | 8,460,579 |
Note: Quantity represents Weight in kilograms
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