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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $362,986,531 | 26,227,351 | 26,227,351 |
| 2006 | $452,462,820 | 18,701,434 | 18,701,434 |
| 2007 | $897,907,154 | 36,696,161 | 36,696,161 |
| 2008 | $1,890,469,368 | 0 | 0 |
| 2009 | $1,295,700,949 | 0 | 0 |
| 2010 | $1,211,642,315 | 0 | 0 |
| 2011 | $1,598,953,076 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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