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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $57,000 | 806,000 | 806,000 |
| 2006 | $52,313 | 797,209 | 797,209 |
| 2007 | $147,178 | 1,800,672 | 1,800,672 |
| 2008 | $83,940 | 696,569 | 696,569 |
| 2009 | $61,456 | 266,652 | 266,652 |
| 2010 | $145,193 | 6,969,495 | 6,969,495 |
| 2011 | $904,157 | 45,197,131 | 45,197,131 |
Note: Quantity represents Weight in kilograms
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