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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $174,397,977 | 297,050 | 297,050 |
| 2006 | $510,312,767 | 648,428 | 648,428 |
| 2007 | $536,526,093 | 578,306 | 578,306 |
| 2008 | $693,542,274 | 744,904 | 744,904 |
| 2009 | $693,327,863 | 0 | 0 |
| 2010 | $935,390,388 | 0 | 0 |
| 2011 | $1,098,177,645 | 1,174,640 | 1,174,640 |
Note: Quantity represents Weight in kilograms
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