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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $504,690,532 | 1,711,547 | 9,466,283,760 |
| 2006 | $521,902,761 | 1,769,919 | 10,788,414,414 |
| 2007 | $579,587,792 | 1,853,102 | 10,141,337,785 |
| 2008 | $505,126,889 | 0 | 7,992,981,540 |
| 2009 | $408,833,236 | 0 | 7,784,819,663 |
| 2010 | $473,966,041 | 1,708,877 | 7,357,862,135 |
| 2011 | $380,586,964 | 1,128,222 | 6,811,348,590 |
Note: Quantity represents Number of items
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