"This map shows Human Development Index (HDI) for 169 countries in the World. The HDI is a comparative measure of life expectancy, literacy, education, and standard of living for countries worldwide. The HDI sets a minimum and a maximum for each dimension, called goalposts, and then shows where each country stands in relation to these goalposts, expressed as a value between 0 and 1, where greater is better. The Human Development Index (HDI) measures the average achievements in a country in three basic dimensions of human development: health, knowledge and standard of living."
Via Seth Dixon