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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $195,227,135 | 1,474,300,000 | 1,474,300,000 |
| 2006 | $182,740,227 | 1,345,975,423 | 1,345,975,423 |
| 2007 | $240,245,210 | 1,406,426,873 | 1,406,426,873 |
| 2008 | $257,765,252 | 1,009,134,167 | 1,009,134,167 |
| 2010 | $420,410,933 | 1,918,634,147 | 1,918,634,147 |
Note: Quantity represents Weight in kilograms
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