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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $61,632,179 | 404,944,225 | 404,944,225 |
| 2006 | $92,685,845 | 590,157,809 | 590,157,809 |
| 2007 | $297,511,939 | 1,435,088,805 | 1,435,088,805 |
| 2008 | $848,645,719 | 3,898,080,236 | 3,898,080,236 |
| 2009 | $504,531,759 | 2,613,392,071 | 2,613,392,071 |
| 2010 | $513,955,137 | 1,835,319,975 | 1,835,319,975 |
| 2011 | $1,067,102,047 | 3,932,313,124 | 3,932,313,124 |
Note: Quantity represents Weight in kilograms
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