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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $17,194,309 | 236,025,481 | 236,025,481 |
| 2006 | $37,743,068 | 466,623,168 | 466,623,168 |
| 2007 | $127,133,868 | 863,999,111 | 863,999,111 |
| 2008 | $95,157,029 | 789,928,714 | 789,928,714 |
| 2011 | $124,790,669 | 1,393,490,094 | 1,393,490,094 |
Note: Quantity represents Weight in kilograms
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