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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $10,106,476,443 | 125,891 | 135,545,483 |
| 2006 | $8,478,201,325 | 13,436 | 118,072,085 |
| 2007 | $9,876,226,551 | 9,409 | 116,947,506 |
| 2008 | $9,306,514,024 | 9,871 | 97,419,945 |
| 2009 | $5,871,519,268 | 14,440 | 77,400,782 |
| 2010 | $8,817,017,827 | 19,674 | 101,487,413 |
| 2011 | $13,881,357,211 | 21,170 | 102,540,461 |
Note: Quantity represents Weight in carats
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