2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $45,489 | 55,605 | 55,605 |
| 2006 | $25,904 | 36,445 | 36,445 |
| 2007 | $71,391 | 348,847 | 348,847 |
| 2008 | $38,007 | 176,491 | 176,491 |
| 2009 | $332,670 | 671,596 | 671,596 |
| 2010 | $352,933 | 1,274,960 | 1,274,960 |
| 2011 | $718,345 | 2,879,218 | 2,879,218 |
Note: Quantity represents Weight in kilograms
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