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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $15,299 | 1,012 | 4,985 |
| 2006 | $25,608 | 697 | 6,070 |
| 2007 | $33,608 | 1,730 | 9,065 |
| 2008 | $100,182 | 11,320 | 23,909 |
| 2009 | $21,803 | 467 | 4,698 |
| 2010 | $12,526 | 991 | 3,112 |
| 2011 | $23,522 | 1,159 | 5,551 |
Note: Quantity represents Area in square metres
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