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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $489,760,488 | 20,897,690 | 20,897,690 |
| 2006 | $567,703,973 | 25,811,312 | 25,811,312 |
| 2007 | $628,264,027 | 24,417,797 | 24,417,797 |
| 2008 | $677,491,221 | 21,322,361 | 21,322,361 |
| 2009 | $559,761,438 | 17,393,491 | 17,393,491 |
| 2010 | $725,394,462 | 18,931,866 | 18,931,866 |
| 2011 | $884,445,802 | 20,776,717 | 20,776,717 |
Note: Quantity represents Weight in kilograms
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