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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $496,407,056 | 4,941,941 | 763,468,249 |
| 2006 | $538,114,568 | 5,209,376 | 0 |
| 2007 | $578,374,958 | 4,399,347 | 0 |
| 2008 | $639,715,843 | 5,303,268 | 0 |
| 2009 | $579,362,008 | 4,294,964 | 43,537,706,291 |
| 2010 | $774,783,664 | 4,466,436 | 61,384,685,505 |
| 2011 | $836,708,724 | 4,967,787 | 71,006,368,309 |
Note: Quantity represents Number of items
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