2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $10,000 $20,000 $30,000 $40,000 $50,000 $60,000 $70,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $19,319 | 4,114 | 4,114 |
| 2006 | $20,947 | 5,697 | 5,697 |
| 2007 | $19,419 | 5,790 | 5,790 |
| 2008 | $19,860 | 5,266 | 5,266 |
| 2009 | $16,739 | 7,730 | 7,730 |
| 2010 | $56,697 | 6,789 | 6,789 |
| 2011 | $27,561 | 10,225 | 10,225 |
Note: Quantity represents Weight in kilograms
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