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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $148,029,609 | 555,780,992 | 555,780,992 |
| 2006 | $158,388,334 | 589,757,016 | 589,757,016 |
| 2007 | $37,168,812 | 91,561,000 | 91,561,000 |
| 2008 | $257,635,248 | 508,796,016 | 508,796,016 |
| 2009 | $352,541,041 | 1,100,885,008 | 1,100,885,008 |
| 2010 | $239,345,104 | 727,229,117 | 727,229,117 |
| 2011 | $502,891,529 | 1,231,541,214 | 1,231,541,214 |
Note: Quantity represents Weight in kilograms
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