Notes: Poverty incidence means the number of poor within a reference population group
expressed as a proportion of the total population of that group. The headcount
measure of aggregate poverty incidence is the percentage of the total population
whose incomes fall below a poverty line held constant over time in real terms; rural
poverty is the percentage of the rural population whose incomes fall below a poverty
line held constant over time in real terms, and so forth. Poverty share means the
number of poor within a reference population group expressed as a proportion of
the total number of poor within the whole population. Population share means the
population of a reference group expressed as a proportion of the total population
of that group.