2004 2005 2006 2007 2008 2009 2010 2011 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000 $10,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $4,075,649 | 3,933,400 | 3,933,400 |
| 2006 | $4,972,831 | 5,753,400 | 5,753,400 |
| 2007 | $6,802,671 | 6,526,400 | 6,526,400 |
| 2008 | $8,749,312 | 7,372,200 | 7,372,200 |
| 2009 | $9,058,704 | 9,046,000 | 9,046,000 |
| 2010 | $8,620,810 | 10,598,200 | 10,598,200 |
Note: Quantity represents Weight in kilograms
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