2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000 $1,000,000 $1,200,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $399,716 | 81,810 | 81,810 |
| 2006 | $350,760 | 57,199 | 57,199 |
| 2007 | $541,283 | 72,246 | 72,246 |
| 2008 | $480,377 | 107,838 | 107,838 |
| 2009 | $440,910 | 100,914 | 100,914 |
| 2010 | $893,912 | 199,617 | 199,617 |
| 2011 | $1,086,608 | 230,460 | 230,460 |
Note: Quantity represents Weight in kilograms
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