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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $220,025,000 | 208,302 | 208,302 |
| 2006 | $177,754,000 | 209,831 | 209,831 |
| 2007 | $171,104,000 | 172,132 | 172,132 |
| 2008 | $70,098,000 | 81,484 | 81,484 |
| 2009 | $102,275,000 | 122,863 | 122,863 |
| 2010 | $229,974,594 | 242,099 | 242,099 |
| 2011 | $487,622,341 | 1,149,987 | 1,149,987 |
Note: Quantity represents Weight in kilograms
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