2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $56,636 | 97,235 | 97,235 |
| 2006 | $67,429 | 84,076 | 84,076 |
| 2007 | $99,947 | 113,533 | 113,533 |
| 2008 | $49,252 | 39,815 | 39,815 |
| 2009 | $44,736 | 55,783 | 55,783 |
| 2010 | $51,211 | 60,773 | 60,773 |
| 2011 | $72,187 | 85,054 | 85,054 |
Note: Quantity represents Weight in kilograms
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