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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $52,563 | 11,655 | 11,655 |
| 2006 | $50,988 | 13,055 | 13,055 |
| 2007 | $44,501 | 14,778 | 14,778 |
| 2008 | $42,735 | 9,986 | 9,986 |
| 2009 | $34,840 | 9,405 | 9,405 |
| 2010 | $42,541 | 7,737 | 7,737 |
| 2011 | $31,633 | 4,151 | 4,151 |
Note: Quantity represents Weight in kilograms
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