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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $409,206,000 | 131,485,600 | 131,485,600 |
| 2006 | $560,562,000 | 172,806,000 | 172,806,000 |
| 2007 | $623,037,000 | 173,600,800 | 173,600,800 |
| 2008 | $716,414,000 | 171,396,239 | 171,396,239 |
| 2009 | $524,433,000 | 134,766,600 | 134,766,600 |
| 2010 | $634,288,912 | 170,355,900 | 170,355,900 |
| 2011 | $786,175,048 | 185,178,888 | 185,178,888 |
Note: Quantity represents Weight in kilograms
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