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| Year | Trade Value | Weight (kg) | Quantity |
| 2006 | $1,532 | 3 | 3 |
| 2007 | $48,603 | 948 | 948 |
| 2008 | $39,200,389 | 428,526,320 | 428,526,320 |
| 2009 | $94,256,000 | 1,231,712,071 | 1,231,712,071 |
| 2010 | $163,143,797 | 1,440,522,431 | 1,440,522,431 |
| 2011 | $147,526,461 | 1,248,172,861 | 1,248,172,861 |
Note: Quantity represents Weight in kilograms
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