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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $227,914,940 | 270,145,243 | 270,145,243 |
| 2006 | $198,510,381 | 260,189,009 | 260,189,009 |
| 2007 | $272,920,016 | 259,936,243 | 259,936,243 |
| 2008 | $374,172,276 | 279,041,170 | 279,041,170 |
| 2009 | $398,137,504 | 364,348,270 | 364,348,270 |
| 2010 | $576,143,356 | 388,395,738 | 388,395,738 |
| 2011 | $833,102,270 | 406,243,542 | 406,243,542 |
Note: Quantity represents Weight in kilograms
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