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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $329,396,631 | 124,256,999 | 124,256,999 |
| 2006 | $372,618,292 | 212,885,203 | 212,885,203 |
| 2007 | $381,070,563 | 192,332,564 | 192,332,564 |
| 2008 | $469,096,372 | 229,136,298 | 229,136,298 |
| 2009 | $407,180,075 | 139,846,682 | 139,846,682 |
| 2010 | $450,239,701 | 0 | 0 |
| 2011 | $457,285,828 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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