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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $142,758,964 | 368,344,143 | 368,344,143 |
| 2006 | $182,752,508 | 429,747,730 | 429,747,730 |
| 2007 | $209,500,306 | 429,731,893 | 429,731,893 |
| 2008 | $218,290,096 | 405,013,726 | 405,013,726 |
| 2009 | $209,372,915 | 447,051,358 | 447,051,358 |
| 2010 | $252,704,537 | 453,608,319 | 453,608,319 |
| 2011 | $383,219,280 | 581,079,334 | 581,079,334 |
Note: Quantity represents Weight in kilograms
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