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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $41,350 | 7,478 | 7,478 |
| 2006 | $47,656 | 6,123 | 6,123 |
| 2007 | $47,745 | 6,940 | 6,940 |
| 2008 | $68,960 | 14,734 | 14,734 |
| 2009 | $62,587 | 9,376 | 9,376 |
| 2010 | $72,143 | 15,945 | 15,945 |
| 2011 | $103,942 | 21,207 | 21,207 |
Note: Quantity represents Weight in kilograms
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