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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $6,318,004,083 | 13,593 | 76,400,063 |
| 2006 | $7,098,601,546 | 16,204 | 84,691,503 |
| 2007 | $6,683,429,945 | 36,109 | 84,573,134 |
| 2008 | $6,350,990,721 | 124,532 | 66,479,819 |
| 2009 | $3,716,192,065 | 4,379 | 43,775,775 |
| 2010 | $5,285,284,644 | 5,359 | 51,785,800 |
| 2011 | $6,951,936,081 | 3,669 | 41,541,136 |
Note: Quantity represents Weight in carats
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