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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $195,492,599 | 2,525,709,477 | 2,525,709,477 |
| 2006 | $307,074,054 | 3,570,870,240 | 3,570,870,240 |
| 2007 | $353,339,576 | 3,661,458,824 | 3,661,458,824 |
| 2008 | $384,016,328 | 2,336,593,051 | 2,336,593,051 |
| 2009 | $562,147,892 | 4,706,074,092 | 4,706,074,092 |
| 2010 | $576,550,753 | 4,440,472,818 | 4,440,472,818 |
| 2011 | $736,403,376 | 4,072,803,680 | 4,072,803,680 |
Note: Quantity represents Weight in kilograms
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