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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $714,025,778 | 3,295,107 | 3,295,107 |
| 2006 | $607,107,996 | 2,395,005 | 2,395,005 |
| 2007 | $330,260,793 | 2,769,996 | 2,769,996 |
| 2008 | $238,859,709 | 2,366,142 | 2,366,142 |
| 2009 | $248,556,093 | 1,141,004 | 1,141,004 |
| 2010 | $328,457,234 | 1,221,660 | 1,221,660 |
| 2011 | $522,621,000 | 1,261,540 | 1,261,540 |
Note: Quantity represents Weight in kilograms
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