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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $322,610,626 | 5,741,544 | 5,741,544 |
| 2006 | $445,012,038 | 5,922,901 | 5,922,901 |
| 2007 | $645,779,688 | 6,777,795 | 6,777,795 |
| 2008 | $1,313,685,912 | 8,363,568 | 8,363,568 |
| 2009 | $703,831,188 | 8,496,049 | 8,496,049 |
| 2010 | $858,403,231 | 12,169,314 | 12,169,314 |
| 2011 | $853,630,713 | 11,823,983 | 11,823,983 |
Note: Quantity represents Weight in kilograms
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