Human Development Concepts and Measurement
The levels of human development have improved all over the world. Every developing region’s HDI value increased considerably between 1990 and 2015, although progress has been slowing since 2010. This reflects important advances not only in income, but also in health and education.
Between 1990 and 2015 the aggregate HDI value of the least developed countries increased 46 percent, and the aggregate HDI value for low human development countries increased 40 percent.