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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $42,352 | 1,530 | 1,530 |
| 2006 | $43,811 | 7,092 | 7,092 |
| 2007 | $200,535 | 24,183 | 24,183 |
| 2008 | $54,868 | 2,749 | 2,749 |
| 2009 | $54,973 | 411 | 411 |
| 2010 | $243,501 | 6,860 | 6,860 |
| 2011 | $174,285 | 3,925 | 3,925 |
Note: Quantity represents Weight in kilograms
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