Survey mean consumption or income per capita, bottom 40% of population (2005 PPP $ per day)
Because household surveys are infrequent in most countries and are not aligned across countries, comparisons across countries or over time should be made with a high degree of caution.
Mean consumption or income per capita (2005 PPP $ per day) used in calculating the growth rate in the welfare aggregate of the bottom 40% of the population in the income distribution in a country.