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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $710,516,000 | 41,465,592 | 41,465,592 |
| 2006 | $864,825,000 | 45,197,052 | 45,197,052 |
| 2007 | $1,395,963,000 | 79,231,595 | 79,231,595 |
| 2008 | $1,574,926,000 | 78,820,853 | 78,820,853 |
| 2009 | $1,203,291,000 | 65,397,739 | 65,397,739 |
| 2010 | $1,532,113,785 | 81,957,847 | 81,957,847 |
| 2011 | $1,979,717,266 | 93,169,406 | 93,169,406 |
Note: Quantity represents Weight in kilograms
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