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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $263,677,000 | 1,769,612,000 | 1,769,612,000 |
| 2006 | $312,103,000 | 1,856,355,600 | 1,856,355,600 |
| 2007 | $544,994,000 | 2,405,771,700 | 2,405,771,700 |
| 2008 | $540,974,000 | 1,841,338,200 | 1,841,338,200 |
| 2009 | $393,275,000 | 1,906,709,000 | 1,906,709,000 |
| 2010 | $376,594,261 | 1,826,642,200 | 1,826,642,200 |
| 2011 | $542,696,761 | 1,828,548,488 | 1,828,548,488 |
Note: Quantity represents Weight in kilograms
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