2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000 $1,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,310 | 1,859 | 1,859 |
| 2006 | $51,732 | 5,006 | 5,006 |
| 2007 | $120,288 | 22,697 | 22,697 |
| 2008 | $828,016 | 115,747 | 115,747 |
| 2009 | $424,382 | 86,677 | 86,677 |
| 2010 | $832,182 | 124,202 | 124,202 |
| 2011 | $701,314 | 92,162 | 92,162 |
Note: Quantity represents Weight in kilograms
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