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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $370,712,239 | 986,121,223 | 986,121,223 |
| 2006 | $407,220,770 | 937,793,644 | 937,793,644 |
| 2007 | $704,767,624 | 1,463,442,652 | 1,463,442,652 |
| 2008 | $809,856,075 | 1,195,506,260 | 1,195,506,260 |
| 2009 | $224,761,490 | 619,629,607 | 619,629,607 |
| 2010 | $220,740,867 | 423,777,058 | 423,777,058 |
| 2011 | $549,283,881 | 713,237,280 | 713,237,280 |
Note: Quantity represents Weight in kilograms
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