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 | $50,941 | 3,337 | 3,337 |
| 2006 | $54,492 | 606 | 606 |
| 2007 | $54,491 | 14,311 | 14,311 |
| 2008 | $291,583 | 41,072 | 41,072 |
| 2009 | $168,428 | 2,973 | 2,973 |
| 2010 | $57,818 | 897 | 897 |
| 2011 | $77,630 | 3,687 | 3,687 |
Note: Quantity represents Weight in kilograms
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