2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $100,000 $200,000 $300,000 $400,000 $500,000 $600,000 $700,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $218,748 | 24,332 | 24,332 |
| 2006 | $291,763 | 19,932 | 19,932 |
| 2007 | $308,586 | 27,663 | 27,663 |
| 2008 | $502,834 | 41,637 | 41,637 |
| 2009 | $477,825 | 32,321 | 32,321 |
| 2010 | $592,051 | 56,882 | 56,882 |
| 2011 | $430,059 | 35,980 | 35,980 |
Note: Quantity represents Weight in kilograms
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