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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $654,638,319 | 23,270,378 | 23,270,378 |
| 2006 | $806,063,207 | 31,930,252 | 31,930,252 |
| 2007 | $1,086,560,192 | 40,709,058 | 40,709,058 |
| 2008 | $1,324,506,990 | 40,709,959 | 40,709,959 |
| 2009 | $1,335,371,622 | 53,934,951 | 53,934,951 |
| 2010 | $1,701,640,729 | 56,784,135 | 56,784,135 |
| 2011 | $1,585,359,772 | 60,616,499 | 60,616,499 |
Note: Quantity represents Weight in kilograms
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