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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $204,533,570 | 18,669,983 | 18,669,983 |
| 2006 | $275,593,070 | 23,851,407 | 23,851,407 |
| 2007 | $371,078,583 | 22,041,339 | 22,041,339 |
| 2008 | $581,211,224 | 22,256,697 | 22,256,697 |
| 2009 | $389,515,764 | 16,264,887 | 16,264,887 |
| 2010 | $349,002,114 | 51,323,968 | 51,323,968 |
Note: Quantity represents Weight in kilograms
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