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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $45,697 | 22,452 | 22,452 |
| 2006 | $49,646 | 26,563 | 26,563 |
| 2007 | $39,113 | 10,840 | 10,840 |
| 2008 | $112,459 | 30,894 | 30,894 |
| 2009 | $222,323 | 101,628 | 101,628 |
| 2010 | $231,715 | 66,806 | 66,806 |
| 2011 | $262,850 | 69,850 | 69,850 |
Note: Quantity represents Weight in kilograms
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