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| Year | Trade Value | Weight (kg) | Quantity |
| 2006 | $86,762,757 | 243,135,143 | 243,135,143 |
| 2007 | $351,420,745 | 1,678,834,038 | 1,678,834,038 |
| 2008 | $42,276,758 | 154,374,142 | 154,374,142 |
| 2009 | $47,809,706 | 105,278,363 | 105,278,363 |
| 2010 | $44,412,450 | 65,667,705 | 65,667,705 |
Note: Quantity represents Weight in kilograms
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