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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $401,754,724 | 339,405,235 | 339,405,235 |
| 2006 | $496,703,805 | 355,636,180 | 355,636,180 |
| 2007 | $530,185,184 | 324,654,740 | 324,654,740 |
| 2008 | $572,056,224 | 315,157,120 | 315,157,120 |
| 2009 | $372,709,369 | 292,821,474 | 292,821,474 |
| 2010 | $472,966,756 | 332,489,556 | 332,489,556 |
| 2011 | $520,353,969 | 299,147,047 | 299,147,047 |
Note: Quantity represents Weight in kilograms
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