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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $34,516,471 | 50,386,126 | 50,386,126 |
| 2006 | $58,314,790 | 79,522,213 | 79,522,213 |
| 2007 | $45,906,155 | 50,262,013 | 50,262,013 |
| 2008 | $91,464,759 | 78,419,276 | 78,419,276 |
| 2009 | $23,665,340 | 32,054,308 | 32,054,308 |
| 2010 | $32,271,117 | 52,108,255 | 52,108,255 |
| 2011 | $35,014,980 | 45,985,689 | 45,985,689 |
Note: Quantity represents Weight in kilograms
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