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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $194,032,524 | 133,406,546 | 133,406,546 |
| 2006 | $211,930,396 | 144,045,374 | 144,045,374 |
| 2007 | $256,140,133 | 153,208,937 | 153,208,937 |
| 2008 | $405,913,130 | 177,148,033 | 177,148,033 |
| 2009 | $236,770,844 | 159,402,825 | 159,402,825 |
| 2010 | $447,235,188 | 204,370,232 | 204,370,232 |
| 2011 | $725,674,407 | 229,662,689 | 229,662,689 |
Note: Quantity represents Weight in kilograms
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