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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $400,534,337 | 26,704,915 | 26,704,915 |
| 2006 | $376,050,674 | 22,519,914 | 22,519,914 |
| 2007 | $443,187,732 | 27,518,471 | 27,518,471 |
| 2008 | $481,290,375 | 28,063,874 | 28,063,874 |
| 2009 | $507,100,058 | 46,129,562 | 46,129,562 |
| 2010 | $570,261,993 | 37,880,688 | 37,880,688 |
Note: Quantity represents Weight in kilograms
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