2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $20,000 $40,000 $60,000 $80,000 $100,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $77,679 | 15,261 | 15,261 |
| 2006 | $63,025 | 10,811 | 10,811 |
| 2007 | $62,708 | 12,936 | 12,936 |
| 2008 | $71,991 | 12,122 | 12,122 |
| 2009 | $36,362 | 6,787 | 6,787 |
| 2010 | $51,654 | 7,166 | 7,166 |
| 2011 | $41,825 | 11,198 | 11,198 |
Note: Quantity represents Weight in kilograms
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