LEI = (LE-20)/(85-20)
MYSI = MYS/15
EYSI = EYS/18
EI = (MYSI + EYSI)/2
II = [ln(GNIpc) - ln(100)] / [ln(75000) - ln(100)]
HDI = ∛ (LEI × EI × II)
Where,
LE = Life Expectancy at Birth
LEI = Life Expectancy Index
MYS = Mean Years of Schooling
MYSI = Mean Years of Schooling Index
EYS = Expected Years of Schooling
EYSI = Expected Years of Schooling Index
GNIpc = Gross National Income at Purchasing Power Parity per Capital
II = Income Index
HDI = Human Development Index
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Formula 
