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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $199,050,226 | 170,636,592 | 170,636,592 |
| 2006 | $442,672,752 | 341,056,615 | 341,056,615 |
| 2007 | $678,390,119 | 443,594,883 | 443,594,883 |
| 2008 | $632,094,591 | 363,474,900 | 363,474,900 |
| 2009 | $357,162,515 | 294,310,291 | 294,310,291 |
| 2010 | $440,745,059 | 294,460,158 | 294,460,158 |
Note: Quantity represents Weight in kilograms
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