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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $759,938,204 | 169,737,592 | 169,737,592 |
| 2006 | $817,121,119 | 181,737,106 | 181,737,106 |
| 2007 | $764,762,484 | 164,422,505 | 164,422,505 |
| 2008 | $759,211,685 | 143,043,768 | 143,043,768 |
| 2009 | $720,897,809 | 141,811,448 | 141,811,448 |
| 2010 | $972,403,854 | 158,951,210 | 158,951,210 |
| 2011 | $1,028,655,493 | 177,711,962 | 177,711,962 |
Note: Quantity represents Weight in kilograms
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