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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $334,927,177 | 1,086,725 | 1,086,725 |
| 2006 | $378,606,666 | 1,704,803 | 1,704,803 |
| 2007 | $409,251,332 | 1,863,443 | 1,863,443 |
| 2008 | $459,261,815 | 1,440,142 | 1,440,142 |
| 2009 | $507,928,343 | 1,365,898 | 1,365,898 |
| 2010 | $653,347,244 | 2,119,335 | 2,119,335 |
| 2011 | $719,186,145 | 3,305,424 | 3,305,424 |
Note: Quantity represents Weight in kilograms
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