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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $54,971,806 | 13,381,434 | 13,381,434 |
| 2006 | $44,488,130 | 10,040,750 | 10,040,750 |
| 2007 | $42,585,079 | 8,928,386 | 8,928,386 |
| 2008 | $39,353,742 | 7,845,049 | 7,845,049 |
| 2009 | $30,383,829 | 7,211,925 | 7,211,925 |
| 2010 | $35,853,807 | 8,549,526 | 8,549,526 |
| 2011 | $43,082,009 | 9,974,403 | 9,974,403 |
Note: Quantity represents Weight in kilograms
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