2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $100,000 $200,000 $300,000 $400,000 $500,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $145,015 | 29,983 | 29,983 |
| 2006 | $172,811 | 37,089 | 37,089 |
| 2007 | $256,616 | 64,509 | 64,509 |
| 2008 | $333,816 | 67,993 | 67,993 |
| 2009 | $162,465 | 49,919 | 49,919 |
| 2010 | $261,714 | 58,329 | 58,329 |
| 2011 | $373,230 | 70,654 | 70,654 |
Note: Quantity represents Weight in kilograms
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