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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $100,901,987 | 7,590,316 | 7,590,316 |
| 2006 | $71,093,713 | 2,748,494 | 96,470,743 |
| 2007 | $50,980,208 | 0 | 47,431,141 |
| 2008 | $37,860,027 | 1,298,074 | 21,343,829 |
| 2009 | $26,118,847 | 742,579 | 18,784,800 |
| 2010 | $42,309,442 | 1,419,794 | 26,833,052 |
| 2011 | $86,202,065 | 3,226,881 | 74,429,631 |
Note: Quantity represents Weight in kilograms
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