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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $9,928,000 | 52,954,400 | 52,954,400 |
| 2006 | $35,297,000 | 207,882,200 | 207,882,200 |
| 2007 | $54,822,000 | 268,834,900 | 268,834,900 |
| 2009 | $51,904,000 | 1,578,970,900 | 1,578,970,900 |
| 2010 | $98,925,000 | 310,675,800 | 310,675,800 |
| 2011 | $127,910,000 | 304,137,100 | 304,137,100 |
Note: Quantity represents Weight in kilograms
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