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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $380,998,542 | 199,371,294 | 199,371,294 |
| 2006 | $399,691,897 | 166,064,257 | 166,064,257 |
| 2007 | $394,438,765 | 155,883,229 | 155,883,229 |
| 2008 | $345,063,307 | 135,981,478 | 135,981,478 |
| 2009 | $253,230,133 | 88,569,662 | 88,569,662 |
| 2010 | $306,846,023 | 122,924,002 | 122,924,002 |
| 2011 | $317,200,883 | 120,868,292 | 120,868,292 |
Note: Quantity represents Weight in kilograms
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