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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $9,280,000 | 173,571,404 | 173,571,404 |
| 2006 | $9,203,000 | 164,394,800 | 164,394,800 |
| 2007 | $11,444,000 | 200,691,600 | 200,691,600 |
| 2008 | $23,248,000 | 187,404,761 | 187,404,761 |
| 2009 | $13,369,000 | 157,563,986 | 157,563,986 |
| 2010 | $20,515,466 | 350,008,403 | 350,008,403 |
| 2011 | $29,159,665 | 281,697,065 | 281,697,065 |
Note: Quantity represents Weight in kilograms
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