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 | $7,321 | 1,575 | 1,575 |
| 2006 | $1,316 | 503 | 503 |
| 2007 | $868 | 295 | 295 |
| 2008 | $9,010 | 1,028 | 1,028 |
| 2009 | $9,163 | 2,632 | 2,632 |
| 2010 | $48,012 | 18,434 | 18,434 |
| 2011 | $1,718 | 680 | 680 |
Note: Quantity represents Weight in kilograms
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