1step,rule,n_before,n_after,n_removed,rationale21,drop entities with region == 'Aggregates',2349,1953,396,Analysis population is countries/economies only (TASK rule)32,keep analysis year 2023 only,1953,217,1736,Latest 2015-2023 year with both indicators for >=150 countries/economies43,drop countries with missing GDPpc PPP or life expectancy in analysis year,217,197,20,"No imputation (TASK rule); dropped: American Samoa; British Virgin Islands; Channel Islands; Cuba; Eritrea; French Polynesia; Gibraltar; Guam; Isle of Man; Korea, Dem. People's Rep.; Liechtenstein; Monaco; New Caledonia; Northern Mariana Islands; South Sudan; St. Martin (French part); Syrian Arab Republic; Venezuela, RB; Virgin Islands (U.S.); Yemen, Rep."5