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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $265,091,627 | 22,404,194 | 22,404,194 |
| 2006 | $210,663,992 | 17,010,797 | 17,010,797 |
| 2007 | $309,454,252 | 26,689,875 | 26,689,875 |
| 2008 | $274,057,382 | 24,788,511 | 24,788,511 |
| 2009 | $273,544,062 | 27,533,036 | 27,533,036 |
| 2010 | $312,464,646 | 32,959,909 | 32,959,909 |
| 2011 | $347,784,178 | 32,823,751 | 32,823,751 |
Note: Quantity represents Weight in kilograms
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