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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $419,427,154 | 151,908,144 | 151,908,144 |
| 2006 | $487,179,614 | 145,154,561 | 145,154,561 |
| 2007 | $549,661,606 | 153,301,073 | 153,301,073 |
| 2008 | $528,412,640 | 140,877,621 | 140,877,621 |
| 2009 | $388,567,624 | 134,306,054 | 134,306,054 |
| 2010 | $392,795,412 | 119,474,216 | 119,474,216 |
| 2011 | $275,265,650 | 74,132,583 | 74,132,583 |
Note: Quantity represents Weight in kilograms
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