Human Development Indices and Indicators: 2018 Statistical Update

The cover shows the progress in the HDI value during the period 1990-2017 and the number of people in the four human development groups. The inner segments of the figure represent the population in each of the human development groups, and the upper segments indicate the value of the HDI in each group. Despite the increase in the total world population from 5 billion to 5.7 billion between 1990 and 2017, the population in the low human development group decreased from 3 billion to 926 million, that is, from 60 to 12 percent of the total world population. The population in the two groups of human development more than three times, from 2.1 to 8.3 billion people, that is, from 24 to 51 percent of the total population of high and very high in the world.

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