2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $200,000 $400,000 $600,000 $800,000 $1,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $866,000 | 54,500 | 54,500 |
| 2006 | $177,000 | 8,700 | 8,700 |
| 2007 | $82,000 | 4,400 | 4,400 |
| 2008 | $131,000 | 6,700 | 6,700 |
| 2009 | $114,000 | 4,338 | 4,338 |
| 2010 | $7,000 | 500 | 500 |
| 2011 | $13,000 | 709 | 709 |
Note: Quantity represents Weight in kilograms
|
|
