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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $98,028,388 | 8,977,744 | 8,977,744 |
| 2006 | $129,820,694 | 8,016,558 | 8,016,558 |
| 2007 | $193,603,173 | 9,199,108 | 9,199,108 |
| 2008 | $340,980,556 | 25,753,970 | 25,753,970 |
| 2009 | $341,999,212 | 24,285,932 | 24,285,932 |
| 2010 | $335,366,672 | 19,619,565 | 19,619,565 |
| 2011 | $364,465,895 | 33,361,375 | 33,361,375 |
Note: Quantity represents Weight in kilograms
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