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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $78,808,000 | 996,276,700 | 996,276,700 |
| 2009 | $72,889,000 | 876,109,100 | 876,109,100 |
| 2010 | $162,513,000 | 1,121,115,500 | 1,121,115,500 |
| 2011 | $167,413,000 | 919,405,200 | 919,405,200 |
Note: Quantity represents Weight in kilograms
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