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 | $5,959,581 | 1,453,739 | 1,453,739 |
| 2006 | $6,492,850 | 1,789,948 | 1,789,948 |
| 2007 | $7,194,545 | 1,687,131 | 1,687,131 |
| 2008 | $7,255,738 | 1,682,003 | 1,682,003 |
| 2009 | $5,942,102 | 1,185,001 | 1,185,001 |
| 2010 | $5,842,688 | 2,061,770 | 2,061,770 |
| 2011 | $6,727,509 | 2,322,271 | 2,322,271 |
Note: Quantity represents Weight in kilograms
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