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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $257,142,944 | 63,359,505 | 32,362,316 |
| 2006 | $256,927,750 | 61,692,774 | 31,512,701 |
| 2007 | $250,629,421 | 59,440,976 | 30,723,608 |
| 2008 | $238,582,423 | 55,807,620 | 27,359,379 |
| 2009 | $194,573,189 | 46,821,860 | 25,512,053 |
| 2010 | $297,184,778 | 68,273,359 | 35,981,189 |
| 2011 | $336,048,876 | 71,002,543 | 38,639,816 |
Note: Quantity represents Area in square metres
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