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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,306 | 758 | 758 |
| 2006 | $10,418 | 1,414 | 1,414 |
| 2007 | $12,803 | 2,465 | 2,465 |
| 2008 | $19,655 | 2,877 | 2,877 |
| 2009 | $30,274 | 4,737 | 4,737 |
| 2010 | $42,793 | 6,827 | 6,827 |
| 2011 | $37,474 | 6,698 | 6,698 |
Note: Quantity represents Weight in kilograms
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