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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $528,167,361 | 4,301,719,838 | 4,301,719,838 |
| 2006 | $572,185,211 | 4,738,741,742 | 4,738,741,742 |
| 2007 | $677,365,720 | 4,884,130,660 | 4,884,130,660 |
| 2008 | $793,096,507 | 5,038,730,648 | 5,038,730,648 |
| 2009 | $563,958,769 | 3,969,645,474 | 3,969,645,474 |
| 2010 | $668,698,821 | 4,177,721,744 | 4,177,721,744 |
| 2011 | $609,176,796 | 6,006,036,599 | 6,006,036,599 |
Note: Quantity represents Weight in kilograms
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