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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $367,747,224 | 8,284,001 | 8,284,001 |
| 2006 | $395,322,742 | 8,983,045 | 8,983,045 |
| 2007 | $374,907,589 | 7,467,320 | 7,467,320 |
| 2008 | $382,124,365 | 8,049,291 | 8,049,291 |
| 2009 | $302,996,378 | 8,887,004 | 8,887,004 |
| 2010 | $288,451,120 | 7,734,894 | 7,734,894 |
| 2011 | $366,998,730 | 9,396,702 | 9,396,702 |
Note: Quantity represents Weight in kilograms
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