{
  "task_id": "F1-conf-02",
  "n_countries_total": 20,
  "n_countries_balanced": 15,
  "n_countries_incomplete": 5,
  "balanced_countries": [
    "AUS",
    "AUT",
    "BEL",
    "CAN",
    "DEU",
    "ESP",
    "FRA",
    "GBR",
    "ITA",
    "JPN",
    "KOR",
    "NLD",
    "SWE",
    "TUR",
    "USA"
  ],
  "n_analysed": 345,
  "mean_2000_balanced": 78.0603,
  "mean_2022_balanced": 81.5531,
  "change_2000_2022_balanced": 3.4928,
  "mean_2022_all_available": 78.692,
  "n_countries_2022_available": 20,
  "descriptive_extra": {
    "country_change_min": 0.797,
    "country_change_min_iso3": "USA",
    "country_change_max": 6.77,
    "country_change_max_iso3": "KOR",
    "country_change_sd": 1.4088,
    "country_change_se_illustrative": 0.3638,
    "mean_2022_balanced_minus_all_available": 2.8611
  },
  "feasibility": "complete",
  "feasibility_reason": null,
  "data_issues": [
    {
      "issue": "TUR: every (iso3, year) for 23 years appears twice under different country_name labels ['Turkey', 'Turkiye'] (assembly of two extractions); values are identical across the copies.",
      "handling": "Identified countries by iso3 and kept one row per (iso3, year) (the later-listed copy, i.e. current API label); values unaffected."
    },
    {
      "issue": "CHE 2007: empty life_expectancy cell (no recorded value).",
      "handling": "Treated as missing; not imputed. Country therefore not in balanced set."
    },
    {
      "issue": "BGD: no rows at all for years 2000-2010 (series only present 2011-2022; likely from the narrower extraction).",
      "handling": "Country excluded from balanced panel; still counted in the 2022 all-available baseline."
    },
    {
      "issue": "ETH: no rows at all for years 2000-2010 (series only present 2011-2022; likely from the narrower extraction).",
      "handling": "Country excluded from balanced panel; still counted in the 2022 all-available baseline."
    },
    {
      "issue": "IND: no rows at all for years 2000-2010 (series only present 2011-2022; likely from the narrower extraction).",
      "handling": "Country excluded from balanced panel; still counted in the 2022 all-available baseline."
    },
    {
      "issue": "NGA: no rows at all for years 2000-2010 (series only present 2011-2022; likely from the narrower extraction).",
      "handling": "Country excluded from balanced panel; still counted in the 2022 all-available baseline."
    }
  ],
  "n_input_rows": {
    "life_expectancy_panel.csv": 439
  },
  "random_seed": null
}