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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,330,277,000 | 509,324,000 | 509,324,000 |
| 2006 | $1,589,888,000 | 601,449,300 | 601,449,300 |
| 2007 | $1,756,561,000 | 586,719,600 | 586,719,600 |
| 2008 | $1,849,108,000 | 560,934,203 | 560,934,203 |
| 2009 | $1,213,689,000 | 383,700,981 | 383,700,981 |
| 2010 | $1,220,682,161 | 412,311,500 | 412,311,500 |
| 2011 | $1,264,093,982 | 377,737,011 | 377,737,011 |
Note: Quantity represents Weight in kilograms
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