2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $50,000,000 $100,000,000 $150,000,000 $200,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $34,843,000 | 6,454,851 | 6,454,851 |
| 2006 | $43,219,000 | 9,755,631 | 9,755,631 |
| 2007 | $54,282,000 | 9,980,161 | 9,980,161 |
| 2008 | $51,876,000 | 6,471,664 | 6,471,664 |
| 2009 | $45,361,000 | 8,360,932 | 8,360,932 |
| 2010 | $68,104,529 | 13,736,099 | 13,736,099 |
| 2011 | $138,514,644 | 16,495,245 | 16,495,245 |
Note: Quantity represents Weight in kilograms
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