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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $567,690,484 | 301,308 | 301,308 |
| 2006 | $657,902,964 | 220,126 | 220,126 |
| 2007 | $653,795,183 | 154,337 | 154,337 |
| 2008 | $485,479,660 | 137,891 | 137,891 |
| 2009 | $1,966,976,169 | 254,718 | 254,718 |
| 2010 | $1,092,681,106 | 208,261 | 208,261 |
| 2011 | $2,029,797,776 | 296,592 | 296,592 |
Note: Quantity represents Weight in kilograms
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