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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,009,105,514 | 9,422,087 | 9,422,087 |
| 2006 | $1,080,998,130 | 5,358,141 | 5,358,141 |
| 2007 | $1,208,570,266 | 5,263,422 | 5,263,422 |
| 2008 | $1,318,580,883 | 5,036,862 | 5,036,862 |
| 2009 | $1,172,805,832 | 4,333,166 | 4,333,166 |
| 2010 | $1,288,399,263 | 4,930,978 | 4,930,978 |
| 2011 | $1,513,698,127 | 5,420,472 | 5,420,472 |
Note: Quantity represents Weight in kilograms
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