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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $105,603,586 | 156,951,813 | 156,951,813 |
| 2006 | $293,953,021 | 492,387,023 | 492,387,023 |
| 2007 | $352,130,821 | 548,009,228 | 548,009,228 |
| 2008 | $126,121,687 | 132,061,131 | 132,061,131 |
| 2009 | $42,680,728 | 49,965,059 | 49,965,059 |
| 2010 | $56,853,766 | 64,503,861 | 64,503,861 |
| 2011 | $64,414,794 | 59,969,307 | 59,969,307 |
Note: Quantity represents Weight in kilograms
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