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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $143,999,711 | 515,329,400 | 515,329,400 |
| 2006 | $139,762,557 | 244,296,956 | 244,296,956 |
| 2007 | $169,548,039 | 271,105,883 | 271,105,883 |
| 2008 | $361,884,748 | 186,418,310 | 186,418,310 |
| 2009 | $133,837,898 | 130,825,996 | 130,825,996 |
| 2010 | $152,677,660 | 168,107,455 | 168,107,455 |
| 2011 | $203,358,241 | 166,190,656 | 166,190,656 |
Note: Quantity represents Weight in kilograms
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