2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $10,000 $20,000 $30,000 $40,000 $50,000 $60,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $19,471 | 2,549 | 2,549 |
| 2006 | $31,893 | 2,318 | 2,318 |
| 2007 | $3,886 | 370 | 370 |
| 2008 | $5,947 | 186 | 186 |
| 2009 | $28,345 | 7,743 | 7,743 |
| 2010 | $32,814 | 4,696 | 4,696 |
| 2011 | $53,050 | 4,385 | 4,385 |
Note: Quantity represents Weight in kilograms
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