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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $41 | 20 | 20 |
| 2006 | $31,809 | 11,200 | 11,200 |
| 2007 | $3,222 | 7,700 | 7,700 |
| 2008 | $540 | 1,126 | 1,126 |
| 2009 | $43,559 | 144,937 | 144,937 |
| 2010 | $101,141 | 233,283 | 233,283 |
| 2011 | $70,330 | 191,596 | 191,596 |
Note: Quantity represents Weight in kilograms
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