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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $216,530,263 | 1,086,932,016 | 1,086,932,016 |
| 2006 | $330,620,288 | 1,617,358,992 | 1,617,358,992 |
| 2007 | $345,855,063 | 1,652,279,253 | 1,652,279,253 |
| 2008 | $576,399,318 | 1,981,113,433 | 1,981,113,433 |
| 2009 | $461,447,838 | 2,830,225,875 | 2,830,225,875 |
| 2010 | $597,654,465 | 3,384,193,112 | 3,384,193,112 |
| 2011 | $998,873,088 | 2,706,207,000 | 2,706,207,000 |
Note: Quantity represents Weight in kilograms
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