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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $690,330,855 | 177,398,970 | 177,398,970 |
| 2006 | $1,206,586,415 | 168,463,013 | 168,463,013 |
| 2007 | $1,039,010,456 | 139,250,647 | 139,250,647 |
| 2008 | $1,204,181,736 | 157,218,802 | 157,218,802 |
| 2009 | $445,831,517 | 73,379,370 | 73,379,370 |
| 2010 | $233,799,120 | 29,575,425 | 29,575,425 |
| 2011 | $864,444,220 | 79,609,252 | 79,609,252 |
Note: Quantity represents Weight in kilograms
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