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 | $293,478 | 34,202 | 34,202 |
| 2006 | $176,577 | 143,001 | 143,001 |
| 2007 | $390,787 | 360,511 | 360,511 |
| 2008 | $567,692 | 627,154 | 627,154 |
| 2009 | $323,368 | 323,329 | 323,329 |
| 2010 | $317,311 | 363,941 | 363,941 |
| 2011 | $495,048 | 511,939 | 511,939 |
Note: Quantity represents Weight in kilograms
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