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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $401,462,360 | 534,501,202 | 534,501,202 |
| 2006 | $1,107,336,241 | 1,285,324,660 | 1,285,324,660 |
| 2007 | $1,305,514,951 | 1,511,777,584 | 1,511,777,584 |
| 2008 | $1,062,038,994 | 1,209,468,933 | 1,209,468,933 |
| 2009 | $1,069,852,471 | 1,339,399,151 | 1,339,399,151 |
| 2010 | $1,342,719,767 | 1,445,681,336 | 1,445,681,336 |
| 2011 | $1,894,647,006 | 1,516,945,600 | 1,516,945,600 |
Note: Quantity represents Weight in kilograms
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