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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,100,270,046 | 110,502 | 110,502 |
| 2006 | $4,028,327,909 | 351,452 | 351,452 |
| 2007 | $4,607,312,053 | 298,374 | 298,374 |
| 2008 | $6,737,087,367 | 320,295 | 320,295 |
| 2009 | $5,488,090,976 | 208,010 | 208,010 |
| 2010 | $3,626,478,778 | 127,440 | 127,440 |
| 2011 | $3,236,981,338 | 79,801 | 79,801 |
Note: Quantity represents Weight in kilograms
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