The construction of the HDI is illustrated with three examples - an industrialised country, Germany, and two developing countries, China and Mozambique.

Country	Life expectancy (years)	Adult literacy (%)	Combined gross enrolment ratio (%)	Real GDP per capita (PPP$)
Germany	77.2	99.0	88.1	21,260
China	69.8	82.9	68.9	3,130
Mozambique	42.3	39.5	32.0	740

Life expectancy index

Germany =	77.2 - 25	=	52.2	= 0.870
	85 - 25		60
China =	69.8 - 25	=	44.8	= 0.747
	85 - 25		60
Mozambique =	42.3 - 25	=	44.8	= 0.288
	85 - 25		60

Adult literacy index

Germany =	99.0 - 0	=	99.0	= 0.990
	100 - 0		100
China =	82.9 - 0	=	82.9	= 0.829
	100 - 0		100
Mozambique =	39.5 - 0	=	39.5	= 0.395
	100 - 0		100

Combined gross enrolment index

Germany =	88.1 - 0	=	88.1	= 0.881
	100 - 0		100
China =	68.9 - 0	=	68.9	= 0.689
	100 - 0		100
Mozambique =	32 - 0	=	32	= 0.320
	100 - 0		100

Educational attainment index

Germany = [2(0.990) + 1(0.881)]/3 = 0.954

China = [2(0.829) + 1(0.689)]/3 = 0.782

Mozambique = [2(0.395) + 1(0.320)]/3 = 0.370

Country	Life expectancy index	Educational attainment index	Adjusted real GDP (PPP$)	Sum of the 3 indices	HDI
Germany	0.870	0.954	0.895	2.719	0.906
China	0.747	0.782	0.575	2.104	0.701
Mozambique	0.288	0.370	0.334	0.992	0.331

Adjusted real GDPper capita (PPP$) index

Germany =	log (21,260) - log (100) log (40,000) - log (100)			= 0.895
China =	log (3,130) - log (100) log (40,000) - log (100)			= 0.575
Mozambique =	log (740) - log (100) log (40,000) - log (100)			= 0.334

Human Development Index
The HDI is a simple average of the life expectancy index, educational attainment index and adjusted real GDP per capita (PPP$) index, and so is derived by dividing the sum of these three indices by 3.