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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $525,618,479 | 150,325,084 | 150,325,084 |
| 2006 | $535,608,982 | 125,451,319 | 125,451,319 |
| 2007 | $688,358,600 | 122,229,978 | 122,229,978 |
| 2008 | $804,100,875 | 127,288,005 | 127,288,005 |
| 2009 | $616,663,713 | 55,887,093 | 55,887,093 |
| 2010 | $633,093,107 | 98,862,175 | 98,862,175 |
Note: Quantity represents Weight in kilograms
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