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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $456,772,630 | 3,661,146,984 | 3,661,146,984 |
| 2006 | $447,156,438 | 3,699,167,000 | 3,699,167,000 |
| 2007 | $635,011,624 | 4,127,283,024 | 4,127,283,024 |
| 2008 | $751,157,979 | 4,698,300,613 | 4,698,300,613 |
| 2009 | $474,980,921 | 3,471,229,984 | 3,471,229,984 |
| 2010 | $741,388,872 | 4,627,474,016 | 4,627,474,016 |
| 2011 | $817,085,585 | 4,951,215,008 | 4,951,215,008 |
Note: Quantity represents Weight in kilograms
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