2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,190,715 | 272,784 | 272,784 |
| 2006 | $2,929,129 | 327,328 | 327,328 |
| 2007 | $2,896,998 | 231,751 | 231,751 |
| 2008 | $2,872,598 | 185,897 | 185,897 |
| 2009 | $1,770,645 | 153,027 | 153,027 |
| 2010 | $4,134,063 | 322,582 | 322,582 |
| 2011 | $6,752,003 | 524,573 | 524,573 |
Note: Quantity represents Weight in kilograms
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