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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $90,540,000 | 2,317,233 | 0 |
| 2006 | $72,122,000 | 2,555,067 | 0 |
| 2007 | $92,081,000 | 1,730,625 | 0 |
| 2008 | $164,991,000 | 2,700,382 | 0 |
| 2009 | $223,123,000 | 26,411,343 | 0 |
| 2010 | $219,777,000 | 18,604,802 | 0 |
| 2011 | $326,600,000 | 15,336,856 | 0 |
Note: Quantity represents No Quantity
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