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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $54,342,475 | 1,196,543,607 | 1,196,543,607 |
| 2006 | $72,035,950 | 1,280,521,241 | 1,280,521,241 |
| 2007 | $77,514,588 | 1,319,345,141 | 1,319,345,141 |
| 2008 | $96,276,031 | 1,276,502,074 | 1,276,502,074 |
| 2009 | $64,048,155 | 892,325,754 | 892,325,754 |
| 2010 | $88,041,712 | 1,099,748,685 | 1,099,748,685 |
| 2011 | $103,560,105 | 1,200,450,870 | 1,200,450,870 |
Note: Quantity represents Weight in kilograms
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