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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $220,537,925 | 172,562,825 | 172,562,825 |
| 2006 | $219,093,988 | 170,226,024 | 170,226,024 |
| 2007 | $274,320,360 | 144,261,018 | 144,261,018 |
| 2008 | $162,716,547 | 60,097,196 | 60,097,196 |
| 2009 | $190,379,187 | 50,113,860 | 50,113,860 |
| 2010 | $484,140,022 | 315,421,485 | 315,421,485 |
| 2011 | $559,355,764 | 254,037,742 | 254,037,742 |
Note: Quantity represents Weight in kilograms
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