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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $128,522,000 | 235,972,200 | 235,972,200 |
| 2006 | $93,332,000 | 159,096,100 | 159,096,100 |
| 2007 | $71,670,000 | 85,982,200 | 85,982,200 |
| 2008 | $192,224,000 | 154,843,200 | 154,843,200 |
| 2009 | $195,552,000 | 232,536,100 | 232,536,100 |
| 2010 | $129,623,726 | 145,818,100 | 145,818,100 |
| 2011 | $219,573,113 | 170,623,374 | 170,623,374 |
Note: Quantity represents Weight in kilograms
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