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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $141,936,145 | 124,792,233 | 124,792,233 |
| 2006 | $311,054,033 | 238,270,096 | 238,270,096 |
| 2007 | $465,583,827 | 317,414,044 | 317,414,044 |
| 2008 | $461,650,797 | 247,008,383 | 247,008,383 |
| 2009 | $260,771,622 | 175,509,474 | 175,509,474 |
| 2010 | $436,742,299 | 271,712,327 | 271,712,327 |
| 2011 | $565,088,497 | 308,119,798 | 308,119,798 |
Note: Quantity represents Weight in kilograms
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