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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $262,728,738 | 295,750,644 | 295,750,644 |
| 2006 | $334,982,919 | 350,386,048 | 350,386,048 |
| 2007 | $501,295,757 | 485,584,026 | 485,584,026 |
| 2008 | $586,709,515 | 507,525,428 | 507,525,428 |
| 2009 | $556,623,590 | 514,877,406 | 514,877,406 |
| 2010 | $850,275,446 | 720,009,049 | 720,009,049 |
| 2011 | $1,068,631,689 | 820,365,223 | 820,365,223 |
Note: Quantity represents Weight in kilograms
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