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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $229,108,737 | 1,685,545,374 | 1,685,545,374 |
| 2006 | $286,066,191 | 1,809,008,015 | 1,809,008,015 |
| 2007 | $372,778,033 | 1,882,198,887 | 1,882,198,887 |
| 2008 | $540,884,987 | 1,597,301,364 | 1,597,301,364 |
| 2009 | $327,694,135 | 1,661,394,517 | 1,661,394,517 |
| 2010 | $327,688,005 | 1,579,712,203 | 1,579,712,203 |
| 2011 | $408,161,467 | 1,609,272,170 | 1,609,272,170 |
Note: Quantity represents Weight in kilograms
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