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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $46,510 | 4,736 | 4,736 |
| 2006 | $81,775 | 4,095 | 4,095 |
| 2007 | $92,043 | 7,058 | 7,058 |
| 2008 | $160,359 | 13,509 | 13,509 |
| 2009 | $267,907 | 14,737 | 14,737 |
| 2010 | $93,316 | 6,304 | 6,304 |
| 2011 | $135,887 | 8,704 | 8,704 |
Note: Quantity represents Weight in kilograms
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