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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $398,299,996 | 141,303,974 | 141,303,974 |
| 2006 | $637,785,012 | 230,747,100 | 230,747,100 |
| 2007 | $649,246,475 | 238,184,988 | 238,184,988 |
| 2008 | $698,498,275 | 249,728,474 | 249,728,474 |
| 2009 | $566,284,590 | 234,692,875 | 234,692,875 |
| 2010 | $813,458,183 | 278,920,823 | 278,920,823 |
Note: Quantity represents Weight in kilograms
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