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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $463,248,302 | 62,864,139 | 62,864,139 |
| 2006 | $599,308,489 | 1,096,540,787 | 1,096,540,787 |
| 2007 | $586,865,398 | 65,554,386 | 65,554,386 |
| 2008 | $679,091,755 | 76,215,568 | 76,215,568 |
| 2009 | $383,156,275 | 38,430,252 | 38,430,252 |
| 2010 | $942,581,891 | 80,345,895 | 80,345,895 |
| 2011 | $1,021,532,531 | 100,480,964 | 100,480,964 |
Note: Quantity represents Weight in kilograms
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