Go to the World Bank database of development indicators and download the three variables listed below for all countries for the year 2021. See section slides if you don't remember how to navigate the World Bank database website. GDP per capita (constant 2015 US$): This measures a country's average income per person. Mortality rate, under 5 (per 1,000 live births): This measures the probability per 1,000 that a newborn baby will die before reaching age five