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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $19,971 | 4,640 | 5,850 |
| 2006 | $20,639 | 3,737 | 2,192 |
| 2007 | $21,334 | 4,611 | 2,467 |
| 2008 | $14,918 | 2,475 | 1,715 |
| 2009 | $7,502 | 1,655 | 915 |
| 2010 | $6,529 | 1,148 | 755 |
| 2011 | $10,377 | 1,265 | 1,227 |
Note: Quantity represents Area in square metres
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