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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $206,765,804 | 47,856,238 | 47,856,238 |
| 2006 | $247,022,956 | 41,619,899 | 41,619,899 |
| 2007 | $321,460,125 | 32,753,795 | 32,753,795 |
| 2008 | $337,180,709 | 28,665,459 | 28,665,459 |
| 2009 | $223,060,153 | 18,210,021 | 18,210,021 |
| 2010 | $376,748,634 | 25,094,582 | 25,094,582 |
| 2011 | $517,297,664 | 33,188,468 | 33,188,468 |
Note: Quantity represents Weight in kilograms
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