2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000 $160,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $25,285 | 4,793 | 4,793 |
| 2006 | $40,898 | 7,245 | 7,245 |
| 2007 | $100,666 | 8,456 | 8,456 |
| 2008 | $104,313 | 9,782 | 9,782 |
| 2009 | $57,080 | 9,242 | 9,242 |
| 2010 | $68,438 | 18,833 | 18,833 |
| 2011 | $127,424 | 37,294 | 37,294 |
Note: Quantity represents Weight in kilograms
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