2004 2005 2006 2007 2008 2009 2010 2011 $0 $20,000,000 $40,000,000 $60,000,000 $80,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $5,326,317 | 9,995,050 | 9,995,050 |
| 2006 | $47,276,032 | 31,647,102 | 31,647,102 |
| 2007 | $69,242,582 | 44,472,901 | 44,472,901 |
| 2008 | $3,299,127 | 4,784,856 | 4,784,856 |
| 2009 | $1,204,341 | 2,818,013 | 2,818,013 |
| 2010 | $1,889,973 | 3,210,764 | 3,210,764 |
Note: Quantity represents Weight in kilograms
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