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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $16,848,670 | 323,667,817 | 323,667,817 |
| 2006 | $18,503,007 | 300,600,057 | 300,600,057 |
| 2007 | $15,169,066 | 239,052,054 | 239,052,054 |
| 2008 | $20,038,606 | 315,723,148 | 315,723,148 |
| 2009 | $21,252,002 | 293,196,370 | 293,196,370 |
| 2010 | $21,469,607 | 338,545,540 | 338,545,540 |
| 2011 | $35,095,472 | 475,283,455 | 475,283,455 |
Note: Quantity represents Weight in kilograms
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