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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $721,810,471 | 29,901,545 | 29,901,545 |
| 2006 | $826,537,288 | 34,239,932 | 34,239,932 |
| 2007 | $1,012,188,638 | 36,088,267 | 36,088,267 |
| 2008 | $1,162,364,105 | 34,659,976 | 34,659,976 |
| 2009 | $964,340,129 | 28,239,402 | 28,239,402 |
| 2010 | $1,025,279,736 | 95,615,658 | 95,615,658 |
| 2011 | $1,326,653,422 | 103,742,973 | 103,742,973 |
Note: Quantity represents Weight in kilograms
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