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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $21,038,215 | 32,758,419 | 32,758,419 |
| 2006 | $24,615,402 | 43,265,546 | 43,265,546 |
| 2007 | $28,485,490 | 47,359,274 | 47,359,274 |
| 2008 | $38,499,289 | 51,724,482 | 51,724,482 |
| 2009 | $14,905,875 | 38,094,098 | 38,094,098 |
| 2010 | $11,022,942 | 13,890,590 | 13,890,590 |
| 2011 | $25,185,097 | 32,222,873 | 32,222,873 |
Note: Quantity represents Weight in kilograms
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