YearTrade ValueWeight (kg)Quantity
2005$272,07131155,800
2006$82,07132162,250
2007$50,2893011,503,800
2008$16,98214,000
2009$13,555631,450
2010$42,1054432,214,950
2011$42,9901441,654
Note: Quantity represents Weight in carats