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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $42,887,026 | 1,483,198,460 | 1,483,198,460 |
| 2006 | $42,577,276 | 1,850,653,438 | 1,850,653,438 |
| 2007 | $83,019,685 | 2,806,310,146 | 2,806,310,146 |
| 2008 | $123,645,190 | 3,876,385,398 | 3,876,385,398 |
| 2009 | $94,242,527 | 3,283,639,438 | 3,283,639,438 |
| 2010 | $121,126,782 | 4,556,338,055 | 4,556,338,055 |
| 2011 | $163,641,247 | 6,767,410,065 | 6,767,410,065 |
Note: Quantity represents Weight in kilograms
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