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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $382,397,052 | 9,041,319 | 9,041,319 |
| 2006 | $519,346,456 | 12,279,323 | 12,279,323 |
| 2007 | $628,392,600 | 13,585,762 | 13,585,762 |
| 2008 | $1,043,453,052 | 20,816,876 | 20,816,876 |
| 2009 | $922,229,949 | 18,366,903 | 18,366,903 |
| 2010 | $1,547,250,902 | 45,449,325 | 45,449,325 |
| 2011 | $1,960,073,844 | 57,834,733 | 57,834,733 |
Note: Quantity represents Weight in kilograms
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