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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $974,133,036 | 37,112,322 | 37,112,322 |
| 2006 | $1,111,222,118 | 58,555,390 | 58,555,390 |
| 2007 | $1,350,028,386 | 62,648,862 | 62,648,862 |
| 2008 | $1,597,868,314 | 70,367,171 | 70,367,171 |
| 2009 | $1,526,353,947 | 64,413,737 | 64,413,737 |
| 2010 | $2,097,623,063 | 100,144,104 | 100,144,104 |
| 2011 | $2,211,989,676 | 99,241,683 | 99,241,683 |
Note: Quantity represents Weight in kilograms
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