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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $474,684,089 | 22,411,902 | 6,020,787,239 |
| 2006 | $478,195,476 | 0 | 6,984,909,544 |
| 2007 | $458,389,319 | 13,506,298 | 6,109,025,574 |
| 2008 | $445,968,792 | 0 | 0 |
| 2009 | $341,983,635 | 7,729,231 | 6,010,102,809 |
| 2010 | $475,921,336 | 0 | 8,840,765,194 |
| 2011 | $530,617,801 | 0 | 7,356,091,694 |
Note: Quantity represents Number of items
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