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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $202,469,069 | 11,814,819 | 11,814,819 |
| 2006 | $217,381,353 | 12,685,006 | 12,685,006 |
| 2007 | $244,184,310 | 0 | 0 |
| 2008 | $265,558,893 | 15,145,103 | 15,145,103 |
| 2009 | $255,096,976 | 11,174,977 | 11,174,977 |
| 2010 | $263,613,227 | 11,888,974 | 11,888,974 |
| 2011 | $347,762,917 | 15,414,987 | 15,414,987 |
Note: Quantity represents Weight in kilograms
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