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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $590,687,738 | 42,553,997 | 42,553,997 |
| 2006 | $678,348,739 | 30,818,982 | 30,818,982 |
| 2007 | $523,568,041 | 0 | 0 |
| 2008 | $611,152,115 | 0 | 0 |
| 2009 | $291,501,060 | 0 | 0 |
| 2010 | $403,824,077 | 30,126,163 | 30,126,163 |
| 2011 | $621,024,200 | 0 | 0 |
Note: Quantity represents Weight in kilograms
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