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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $464,364,156 | 70,735,456 | 70,735,456 |
| 2006 | $475,508,380 | 70,057,341 | 70,057,341 |
| 2007 | $573,008,070 | 79,014,955 | 79,014,955 |
| 2008 | $567,619,050 | 75,044,721 | 75,044,721 |
| 2009 | $555,047,218 | 78,378,735 | 78,378,735 |
| 2010 | $599,135,018 | 85,306,940 | 85,306,940 |
| 2011 | $677,503,587 | 83,590,641 | 83,590,641 |
Note: Quantity represents Weight in kilograms
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