2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $20,000 $40,000 $60,000 $80,000 $100,000 $120,000 $140,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $113,004 | 49,621 | 49,621 |
| 2006 | $52 | 5 | 5 |
| 2007 | $29,355 | 9,095 | 9,095 |
| 2008 | $67,217 | 20,989 | 20,989 |
| 2009 | $28,881 | 10,322 | 10,322 |
| 2010 | $20,148 | 8,419 | 8,419 |
| 2011 | $21,270 | 6,013 | 6,013 |
Note: Quantity represents Weight in kilograms
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