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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $1,660,727,963 | 4,590 | 23,010,683 |
| 2006 | $1,718,365,644 | 4,439 | 22,160,155 |
| 2007 | $1,719,325,339 | 3,946 | 19,791,520 |
| 2008 | $1,531,168,133 | 3,432 | 17,091,319 |
| 2009 | $1,162,266,253 | 1,785 | 8,900,565 |
| 2010 | $2,630,178,564 | 5,323 | 26,688,705 |
| 2011 | $3,642,124,455 | 4,497 | 112,473,249,484 |
Note: Quantity represents Weight in carats
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