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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $277,524,000 | 1,572,139 | 1,572,139 |
| 2006 | $303,584,000 | 1,750,538 | 1,750,538 |
| 2007 | $365,511,000 | 1,591,071 | 1,591,071 |
| 2008 | $425,038,000 | 1,399,899 | 1,399,899 |
| 2009 | $424,323,000 | 1,431,329 | 1,431,329 |
| 2010 | $471,642,316 | 1,500,945 | 1,500,945 |
| 2011 | $577,115,616 | 1,943,038 | 1,943,038 |
Note: Quantity represents Weight in kilograms
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