2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $20,000 $40,000 $60,000 $80,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $65,483 | 8,658 | 8,658 |
| 2006 | $7,036 | 711 | 711 |
| 2007 | $20,592 | 3,324 | 3,324 |
| 2008 | $20,800 | 1,999 | 1,999 |
| 2009 | $15,440 | 2,007 | 2,007 |
| 2010 | $17,033 | 1,579 | 1,579 |
| 2011 | $15,243 | 1,214 | 1,214 |
Note: Quantity represents Weight in kilograms
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