Global Multidimensional Poverty Index (OPHI). mpi is 0-1, higher = more poverty; mpi_change is latest minus earliest, so NEGATIVE means poverty fell. Surveys are irregular - read with n_years. MPI = headcount_pct x intensity, from the same survey year.
country data_range data_year earliest_year headcount_pct id intensity iso3cd mpi mpi_change mpi_earliest n_years