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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $311,745,349 | 383,098,130 | 383,098,130 |
| 2006 | $377,456,273 | 476,513,701 | 476,513,701 |
| 2007 | $380,599,169 | 458,753,241 | 458,753,241 |
| 2008 | $283,049,508 | 286,755,125 | 286,755,125 |
| 2009 | $375,690,253 | 290,218,625 | 290,218,625 |
| 2010 | $523,008,944 | 453,582,447 | 453,582,447 |
| 2011 | $450,856,692 | 362,222,032 | 362,222,032 |
Note: Quantity represents Weight in kilograms
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