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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $144,598,862 | 949,919,114 | 949,919,114 |
| 2006 | $163,815,998 | 995,245,811 | 995,245,811 |
| 2007 | $315,177,565 | 1,095,568,543 | 1,095,568,543 |
| 2008 | $423,840,035 | 1,103,244,261 | 1,103,244,261 |
| 2009 | $173,070,328 | 798,566,509 | 798,566,509 |
| 2010 | $236,642,463 | 1,103,380,380 | 1,103,380,380 |
Note: Quantity represents Weight in kilograms
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