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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $150,454,402 | 847,049,053 | 847,049,053 |
| 2006 | $147,408,054 | 775,245,679 | 775,245,679 |
| 2007 | $224,324,315 | 996,898,254 | 996,898,254 |
| 2008 | $466,734,380 | 819,313,971 | 819,313,971 |
| 2009 | $97,094,644 | 195,181,442 | 195,181,442 |
| 2010 | $279,164,884 | 794,109,868 | 794,109,868 |
| 2011 | $330,060,356 | 766,560,334 | 766,560,334 |
Note: Quantity represents Weight in kilograms
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