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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $68,298 | 149,162 | 149,162 |
| 2006 | $57,291 | 103,350 | 103,350 |
| 2007 | $59,080 | 101,140 | 101,140 |
| 2008 | $139,765 | 218,228 | 218,228 |
| 2009 | $211,288 | 213,700 | 213,700 |
| 2010 | $150,325 | 172,420 | 172,420 |
| 2011 | $143,425 | 149,380 | 149,380 |
Note: Quantity represents Weight in kilograms
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