2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000 $100,000 $150,000 $200,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $96,057 | 66,909 | 66,909 |
| 2006 | $56,873 | 63,488 | 63,488 |
| 2007 | $43,142 | 31,062 | 31,062 |
| 2008 | $44,030 | 26,290 | 26,290 |
| 2009 | $97,363 | 47,529 | 47,529 |
| 2010 | $159,499 | 122,917 | 122,917 |
| 2011 | $134,169 | 95,514 | 95,514 |
Note: Quantity represents Weight in kilograms
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