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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $51,459,283 | 6,238,915 | 31,534,781 |
| 2006 | $54,992,329 | 6,667,261 | 33,699,868 |
| 2007 | $43,100,612 | 4,470,484 | 24,548,230 |
| 2008 | $6,568,594 | 0 | 3,488,166 |
| 2009 | $17,219,807 | 0 | 11,855,697 |
| 2010 | $13,828,855 | 0 | 0 |
| 2011 | $7,611,446 | 0 | 2,808,932 |
Note: Quantity represents Area in square metres
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