2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000 $100,000 $150,000 $200,000 $250,000 $300,000 $350,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $89,148 | 5,581 | 5,581 |
| 2006 | $147,073 | 8,829 | 8,829 |
| 2007 | $186,775 | 25,828 | 25,828 |
| 2008 | $194,641 | 8,771 | 8,771 |
| 2009 | $110,978 | 3,904 | 3,904 |
| 2010 | $291,487 | 6,010 | 6,010 |
| 2011 | $198,559 | 4,472 | 4,472 |
Note: Quantity represents Weight in kilograms
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