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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $21,787 | 2,592 | 2,592 |
| 2006 | $34,549 | 4,508 | 4,508 |
| 2007 | $45,875 | 5,577 | 43,982 |
| 2008 | $108,892 | 11,866 | 98,082 |
| 2009 | $72,446 | 7,335 | 15,754 |
| 2010 | $82,237 | 8,953 | 20,834 |
| 2011 | $132,677 | 19,170 | 31,704 |
Note: Quantity represents Weight in kilograms
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