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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $14,327,000 | 90,746,400 | 90,746,400 |
| 2006 | $19,354,000 | 108,648,600 | 108,648,600 |
| 2007 | $27,053,000 | 133,458,400 | 133,458,400 |
| 2008 | $54,579,000 | 135,720,100 | 135,720,100 |
| 2009 | $39,363,000 | 194,932,500 | 194,932,500 |
| 2010 | $68,204,000 | 305,262,500 | 305,262,500 |
| 2011 | $130,554,000 | 396,253,100 | 396,253,100 |
Note: Quantity represents Weight in kilograms
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