1[2 {"id":"C1","text":"15 of the 20 countries have a recorded life expectancy in every year 2000-2022; BGD, CHE, ETH, IND, NGA are incomplete.","results_keys":["n_countries_total","n_countries_balanced","n_countries_incomplete","balanced_countries"],"status":"supported","caveat":"CHE excluded because of a single empty cell (2007)."},3 {"id":"C2","text":"Balanced-panel mean life expectancy rose from 78.060 years in 2000 to 81.553 years in 2022, a change of +3.493 years.","results_keys":["mean_2000_balanced","mean_2022_balanced","change_2000_2022_balanced"],"status":"supported","caveat":"Unweighted mean over 15 mostly high-income countries; not representative of all 20."},4 {"id":"C3","text":"The naive 2022 mean over all 20 available countries (78.692) is lower than the balanced 2022 mean because it includes four lower-life-expectancy countries lacking early data.","results_keys":["mean_2022_all_available","mean_2022_balanced"],"status":"supported","caveat":"Descriptive baseline only."},5 {"id":"C4","text":"The file contains an exact duplicate of TUR (Turkey/Turkiye) which was deduplicated by iso3-year; the balanced analytic dataset has 345 country-years.","results_keys":["data_issues","n_analysed","n_input_rows"],"status":"supported","caveat":"Duplicate values were identical, so the choice of row does not affect results."}6]7