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 | $120,997 | 42,954 | 42,954 |
| 2006 | $228,139 | 30,206 | 30,206 |
| 2007 | $3,430,068 | 309,826 | 309,826 |
| 2008 | $4,143,898 | 597,414 | 597,414 |
| 2009 | $3,277,951 | 400,219 | 400,219 |
| 2010 | $4,606,157 | 463,322 | 463,322 |
| 2011 | $7,414,662 | 856,666 | 856,666 |
Note: Quantity represents Weight in kilograms
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