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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $125,919,000 | 1,395,202,163 | 1,395,202,163 |
| 2006 | $121,760,000 | 1,249,473,994 | 1,249,473,994 |
| 2007 | $121,567,000 | 921,207,978 | 921,207,978 |
| 2008 | $154,092,000 | 1,067,452,955 | 1,067,452,955 |
| 2009 | $97,148,000 | 1,078,730,600 | 1,078,730,600 |
| 2010 | $148,711,915 | 1,007,468,200 | 1,007,468,200 |
| 2011 | $225,777,387 | 1,204,243,501 | 1,204,243,501 |
Note: Quantity represents Weight in kilograms
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