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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $247,193,000 | 898,964,573 | 898,964,573 |
| 2006 | $462,154,000 | 1,324,624,700 | 1,324,624,700 |
| 2007 | $570,806,000 | 1,395,625,600 | 1,395,625,600 |
| 2008 | $588,307,000 | 1,231,317,300 | 1,231,317,300 |
| 2009 | $280,564,000 | 1,086,804,295 | 1,086,804,295 |
| 2010 | $484,663,136 | 1,563,871,600 | 1,563,871,600 |
| 2011 | $600,607,774 | 1,436,360,631 | 1,436,360,631 |
Note: Quantity represents Weight in kilograms
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