2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000 $100,000 $150,000 $200,000 $250,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $69,700 | 31,740 | 31,740 |
| 2006 | $80,900 | 51,575 | 51,575 |
| 2007 | $96,300 | 31,443 | 31,443 |
| 2008 | $164,000 | 71,154 | 71,154 |
| 2009 | $51,900 | 20,091 | 20,091 |
| 2010 | $217,900 | 81,644 | 81,644 |
| 2011 | $182,300 | 68,654 | 68,654 |
Note: Quantity represents Weight in kilograms
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