2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $2,000,000 $4,000,000 $6,000,000 $8,000,000 $10,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $3,674,054 | 10,474,619 | 10,474,619 |
| 2006 | $3,466,654 | 7,777,091 | 7,777,091 |
| 2007 | $4,374,526 | 9,669,055 | 9,669,055 |
| 2008 | $5,533,034 | 11,521,430 | 11,521,430 |
| 2009 | $6,649,459 | 14,632,600 | 14,632,600 |
| 2010 | $6,248,687 | 14,183,065 | 14,183,065 |
| 2011 | $8,173,869 | 19,273,844 | 19,273,844 |
Note: Quantity represents Weight in kilograms
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