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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $323,829,267 | 246,427,491 | 246,427,491 |
| 2006 | $337,459,256 | 231,702,048 | 231,702,048 |
| 2007 | $365,419,856 | 216,560,975 | 216,560,975 |
| 2008 | $361,382,964 | 189,503,918 | 189,503,918 |
| 2009 | $268,724,259 | 390,973,804 | 390,973,804 |
| 2010 | $333,413,347 | 203,288,387 | 203,288,387 |
Note: Quantity represents Weight in kilograms
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