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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $273,420,000 | 45,261,993 | 45,261,993 |
| 2006 | $289,493,000 | 46,464,361 | 46,464,361 |
| 2007 | $337,162,000 | 47,602,818 | 47,602,818 |
| 2008 | $399,334,000 | 56,420,883 | 56,420,883 |
| 2009 | $357,860,000 | 56,216,500 | 56,216,500 |
| 2010 | $337,622,163 | 60,193,372 | 60,193,372 |
| 2011 | $425,148,624 | 62,275,571 | 62,275,571 |
Note: Quantity represents Weight in kilograms
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