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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $420,173 | 342,976 | 26,835 |
| 2006 | $522,962 | 274,697 | 19,876 |
| 2007 | $862,330 | 593,233 | 41,209 |
| 2008 | $834,245 | 412,739 | 25,602 |
| 2009 | $1,070,611 | 603,387 | 42,488 |
| 2010 | $1,663,410 | 1,398,816 | 88,161 |
| 2011 | $1,117,301 | 588,430 | 40,940 |
Note: Quantity represents Area in square metres
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