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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $184,101,421 | 271,751,546 | 271,751,546 |
| 2006 | $279,134,356 | 396,767,806 | 396,767,806 |
| 2007 | $250,580,969 | 334,529,926 | 334,529,926 |
| 2008 | $309,520,658 | 285,390,778 | 285,390,778 |
| 2009 | $124,493,419 | 153,568,978 | 153,568,978 |
| 2010 | $241,548,439 | 262,018,454 | 262,018,454 |
| 2011 | $336,405,491 | 305,874,936 | 305,874,936 |
Note: Quantity represents Weight in kilograms
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