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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $261,133,958 | 5,197,497,287 | 5,197,497,287 |
| 2006 | $197,686,970 | 3,435,764,759 | 3,435,764,759 |
| 2007 | $240,423,539 | 3,604,803,716 | 3,604,803,716 |
| 2008 | $337,125,832 | 3,787,547,820 | 3,787,547,820 |
| 2009 | $85,876,451 | 941,397,914 | 941,397,914 |
| 2010 | $239,662,171 | 2,272,354,077 | 2,272,354,077 |
| 2011 | $260,314,735 | 1,771,789,482 | 1,771,789,482 |
Note: Quantity represents Weight in kilograms
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