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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $19,025,050 | 838,626,042 | 838,626,042 |
| 2006 | $17,396,624 | 653,058,545 | 653,058,545 |
| 2007 | $21,652,096 | 809,480,998 | 809,480,998 |
| 2008 | $10,218,566 | 308,651,891 | 308,651,891 |
| 2009 | $3,926,880 | 111,340,000 | 111,340,000 |
| 2010 | $10,816,265 | 335,578,655 | 335,578,655 |
| 2011 | $11,570,323 | 381,520,226 | 381,520,226 |
Note: Quantity represents Weight in kilograms
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