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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $446,201,264 | 37,448,466 | 37,448,466 |
| 2006 | $482,933,898 | 40,561,660 | 40,561,660 |
| 2007 | $574,458,074 | 45,964,087 | 45,964,087 |
| 2008 | $628,978,405 | 42,680,400 | 42,680,400 |
| 2009 | $476,503,613 | 33,713,566 | 33,713,566 |
| 2010 | $469,155,055 | 35,112,982 | 35,112,982 |
| 2011 | $582,514,758 | 41,558,384 | 41,558,384 |
Note: Quantity represents Weight in kilograms
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