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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,163,683,164 | 225,096 | 225,096 |
| 2006 | $3,320,138,731 | 172,756 | 172,756 |
| 2007 | $4,136,920,158 | 186,951 | 186,951 |
| 2008 | $3,616,187,361 | 135,866 | 135,866 |
| 2009 | $2,823,430,360 | 102,928 | 102,928 |
| 2010 | $3,587,367,400 | 109,277 | 109,277 |
| 2011 | $4,198,124,042 | 93,076 | 93,076 |
Note: Quantity represents Weight in kilograms
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