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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $48,222 | 678,413 | 4,575 |
| 2006 | $45,691 | 490,790 | 4,335 |
| 2007 | $39,155 | 356,727 | 5,050 |
| 2008 | $74,629 | 483,227 | 5,954 |
| 2009 | $11,392 | 77,791 | 844 |
| 2010 | $6,493 | 35,332 | 470 |
| 2011 | $35,136 | 222,203 | 2,785 |
Note: Quantity represents Area in square metres
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