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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $61,268,857 | 178,161,531 | 178,161,531 |
| 2006 | $49,056,466 | 150,765,468 | 150,765,468 |
| 2007 | $39,234,499 | 89,479,820 | 89,479,820 |
| 2008 | $87,403,292 | 102,858,518 | 102,858,518 |
| 2009 | $81,353,944 | 179,089,134 | 179,089,134 |
| 2010 | $64,941,611 | 135,413,128 | 135,413,128 |
Note: Quantity represents Weight in kilograms
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