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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $15,143,170,147 | 56,172,512 | 56,172,512 |
| 2006 | $18,169,555,931 | 40,220,731 | 40,220,731 |
| 2007 | $18,849,566,670 | 26,964,516 | 26,964,516 |
| 2008 | $19,584,430,821 | 30,099,791 | 30,099,791 |
| 2009 | $4,501,585,261 | 5,403,510 | 5,403,510 |
| 2010 | $4,531,780,097 | 5,030,690 | 5,030,690 |
| 2011 | $4,623,018,860 | 5,516,548 | 5,516,548 |
Note: Quantity represents Weight in kilograms
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