2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $1,000,000 $2,000,000 $3,000,000 $4,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $2,757,848 | 5,004,983 | 5,004,983 |
| 2006 | $235,761 | 386,410 | 386,410 |
| 2007 | $3,313,897 | 3,580,423 | 3,580,423 |
| 2008 | $1,556,052 | 1,746,900 | 1,746,900 |
| 2009 | $2,229,664 | 2,516,070 | 2,516,070 |
| 2010 | $2,150,286 | 2,088,046 | 2,088,046 |
| 2011 | $2,061,688 | 1,768,788 | 1,768,788 |
Note: Quantity represents Weight in kilograms
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