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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,515,061,379 | 17,210,739 | 17,210,739 |
| 2006 | $2,210,514,644 | 11,595,436 | 11,595,436 |
| 2007 | $2,127,461,964 | 0 | 0 |
| 2008 | $3,739,397,095 | 0 | 0 |
| 2009 | $2,458,257,631 | 0 | 0 |
| 2010 | $3,083,754,083 | 0 | 0 |
| 2011 | $3,446,567,356 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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