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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $201,590,098 | 12,413,183 | 12,413,183 |
| 2006 | $249,796,481 | 9,645,478 | 9,645,478 |
| 2007 | $333,956,584 | 0 | 0 |
| 2008 | $408,750,392 | 0 | 0 |
| 2009 | $400,874,401 | 0 | 0 |
| 2010 | $426,244,562 | 0 | 0 |
| 2011 | $348,884,738 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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