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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $135,540,920 | 149,221,275 | 149,221,275 |
| 2006 | $99,522,463 | 158,931,785 | 158,931,785 |
| 2007 | $153,337,660 | 103,797,134 | 103,797,134 |
| 2008 | $1,026,734,905 | 187,633,763 | 187,633,763 |
| 2009 | $321,422,334 | 65,526,395 | 65,526,395 |
| 2010 | $321,664,785 | 89,706,648 | 89,706,648 |
| 2011 | $722,959,427 | 97,609,968 | 97,609,968 |
Note: Quantity represents Weight in kilograms
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