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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,071,617,037 | 125,691,133 | 125,691,133 |
| 2006 | $1,104,574,632 | 113,613,444 | 113,613,444 |
| 2007 | $1,619,476,376 | 113,178,015 | 113,178,015 |
| 2008 | $1,499,199,845 | 101,275,824 | 101,275,824 |
| 2009 | $1,127,875,437 | 73,146,076 | 73,146,076 |
| 2010 | $1,334,735,084 | 100,534,259 | 100,534,259 |
Note: Quantity represents Weight in kilograms
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