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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $9,933,229 | 243,375 | 0 |
| 2006 | $11,458,527 | 368,324 | 0 |
| 2007 | $8,173,238 | 396,033 | 1,549,811,477 |
| 2008 | $6,395,738 | 199,907 | 999,534,879 |
| 2009 | $3,855,566 | 254,971 | 1,274,852,641 |
| 2010 | $9,588,226 | 133,301 | 666,505,329 |
| 2011 | $5,011,492 | 220,352 | 1,101,760,344 |
Note: Quantity represents No Quantity
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