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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $300,664,500 | 142,296,685 | 142,296,685 |
| 2006 | $456,206,811 | 168,717,779 | 168,717,779 |
| 2007 | $590,843,713 | 196,493,537 | 196,493,537 |
| 2008 | $600,922,435 | 192,547,493 | 192,547,493 |
| 2009 | $330,969,242 | 151,052,598 | 151,052,598 |
| 2010 | $508,667,114 | 199,527,034 | 199,527,034 |
| 2011 | $674,117,322 | 230,434,288 | 230,434,288 |
Note: Quantity represents Weight in kilograms
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