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 | $15,981 | 1,986 | 1,986 |
| 2006 | $24,038 | 2,671 | 2,671 |
| 2007 | $12,933 | 3,274 | 3,274 |
| 2008 | $41,758 | 9,475 | 9,475 |
| 2009 | $292,974 | 4,115 | 4,115 |
| 2010 | $13,564 | 3,466 | 3,466 |
| 2011 | $23,611 | 2,884 | 2,884 |
Note: Quantity represents Weight in kilograms
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