2004 2005 2006 2007 2008 2009 2010 2011 2012 $0 $20,000,000 $40,000,000 $60,000,000 $80,000,000 $100,000,000 $120,000,000 $140,000,000 $160,000,000
| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $76,205,509 | 12,056,278 | 12,056,278 |
| 2006 | $82,515,698 | 14,622,969 | 14,622,969 |
| 2007 | $107,181,990 | 15,070,368 | 15,070,368 |
| 2008 | $126,231,466 | 15,647,251 | 15,647,251 |
| 2009 | $86,210,674 | 8,725,215 | 8,725,215 |
| 2010 | $116,541,779 | 14,161,988 | 14,161,988 |
| 2011 | $130,401,145 | 12,805,248 | 12,805,248 |
Note: Quantity represents Weight in kilograms
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