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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $21,799,175 | 4,572,403 | 0 |
| 2006 | $20,565,927 | 3,357,575 | 0 |
| 2007 | $23,239,240 | 10,035,895 | 0 |
| 2008 | $19,294,864 | 2,905,476 | 0 |
| 2009 | $24,980,953 | 4,212,475 | 450,229,759 |
| 2010 | $26,402,132 | 756,371 | 279,087,635 |
| 2011 | $50,117,253 | 8,067,345 | 433,794,624 |
Note: Quantity represents No Quantity
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