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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $392,545,599 | 1,704,558,308 | 1,704,558,308 |
| 2006 | $55,300,921 | 270,515,552 | 270,515,552 |
| 2007 | $16,648,882 | 69,343,819 | 69,343,819 |
| 2008 | $236,775 | 373,258 | 373,258 |
| 2009 | $81,879,816 | 330,895,488 | 330,895,488 |
| 2010 | $180,341,886 | 664,506,473 | 664,506,473 |
| 2011 | $169,219,943 | 449,889,791 | 449,889,791 |
Note: Quantity represents Weight in kilograms
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