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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $189,639,985 | 3,386,196,000 | 3,386,196,000 |
| 2006 | $142,743,260 | 2,456,647,700 | 2,456,647,700 |
| 2007 | $191,826,617 | 1,948,897,000 | 1,948,897,000 |
| 2008 | $624,548,126 | 4,158,128,103 | 4,158,128,103 |
| 2009 | $260,612,437 | 2,870,944,764 | 2,870,944,764 |
| 2010 | $1,175,820,553 | 7,285,967,303 | 7,285,967,303 |
| 2011 | $2,611,199,650 | 12,014,631,016 | 12,014,631,016 |
Note: Quantity represents Weight in kilograms
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