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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $59,468,000 | 47,125,300 | 47,125,300 |
| 2006 | $58,253,000 | 45,338,078 | 45,338,078 |
| 2007 | $60,801,000 | 42,925,500 | 42,925,500 |
| 2008 | $83,705,000 | 49,167,100 | 49,167,100 |
| 2009 | $84,022,000 | 49,330,800 | 49,330,800 |
| 2010 | $77,373,181 | 47,280,000 | 47,280,000 |
| 2011 | $105,179,970 | 55,707,411 | 55,707,411 |
Note: Quantity represents Weight in kilograms
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