1[2 {"id":"C1","text":"15 of the 20 countries have a recorded life expectancy value in every year 2000-2022 (345 country-years); BGD, CHE, ETH, IND and NGA are incomplete.","results_keys":["n_countries_total","n_countries_balanced","n_countries_incomplete","balanced_countries","n_analysed"],"status":"supported","caveat":"CHE is excluded solely due to one empty cell (2007); the 4 others lack 2000-2010 rows in the file, likely an assembly artifact."},3 {"id":"C2","text":"Balanced-panel mean life expectancy rose from 78.06 years in 2000 to 81.55 years in 2022, an increase of 3.49 years.","results_keys":["mean_2000_balanced","mean_2022_balanced","change_2000_2022_balanced"],"status":"supported","caveat":"Unweighted mean over a mostly high-income set; descriptive, no sampling inference."},4 {"id":"C3","text":"The naive 2022 mean over all 20 available countries (78.69) is about 2.9 years below the balanced 2022 mean, because of composition differences.","results_keys":["mean_2022_all_available","mean_2022_balanced"],"status":"supported","caveat":"Baseline only; not the estimand."},5 {"id":"C4","text":"TUR was duplicated under two names with identical values and was deduplicated to one country.","results_keys":["data_issues","n_input_rows"],"status":"supported","caveat":"Values identical, so deduplication does not affect results."}6]7