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| Year | Trade Value | Weight (kg) | Quantity |
| 2006 | $66,814,000 | 987,542,700 | 987,542,700 |
| 2007 | $75,061,000 | 968,033,100 | 968,033,100 |
| 2009 | $40,746,000 | 616,683,600 | 616,683,600 |
| 2010 | $94,425,000 | 864,393,100 | 864,393,100 |
| 2011 | $121,099,000 | 861,191,200 | 861,191,200 |
Note: Quantity represents Weight in kilograms
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