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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,625,243,895 | 110,444,689 | 110,444,689 |
| 2006 | $2,573,619,932 | 124,587,322 | 124,587,322 |
| 2007 | $3,856,131,695 | 100,840,812 | 100,840,812 |
| 2008 | $2,559,527,580 | 106,640,689 | 106,640,689 |
| 2009 | $1,217,165,538 | 85,867,598 | 85,867,598 |
| 2010 | $2,323,357,602 | 109,849,224 | 109,849,224 |
| 2011 | $2,774,514,650 | 116,544,671 | 116,544,671 |
Note: Quantity represents Weight in kilograms
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