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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $46,617,505 | 13,976,660 | 25,151,694,151 |
| 2006 | $56,761,436 | 57,596,942 | 30,399,472,974 |
| 2007 | $64,996,541 | 29,794,382 | 26,992,859,811 |
| 2008 | $55,709,457 | 13,861,667 | 25,307,844,621 |
| 2009 | $57,792,984 | 6,110,636 | 27,178,768,503 |
| 2010 | $63,591,326 | 6,663,637 | 33,318,183,942 |
| 2011 | $92,403,104 | 8,254,405 | 38,323,359,924 |
Note: Quantity represents Weight in carats
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