1{2 "task_id": "F1-conf-01",3 "first_growth_month": "2001-01",4 "last_month": "2026-09",5 "n_months_growth": 308,6 "n_months_missing_growth": 1,7 "n_analysed": 308,8 "mean_growth_12m": 2.5741201901,9 "mean_growth_12m_2001_2013": 2.3612153974,10 "mean_growth_12m_2014_2026": 2.7926277404,11 "growth_2014_06": 2.0976342439,12 "growth_2016_07": 0.8683633431,13 "growth_2020_05": 0.1982013036,14 "growth_2022_06": 8.9793611031,15 "growth_2026_09": 3.7172508443,16 "max_growth_12m": 8.9793611031,17 "max_growth_month": "2022-06",18 "min_growth_12m": -1.9587610038,19 "min_growth_month": "2009-07",20 "feasibility": "partial",21 "feasibility_reason": "g_t not computable for 1 window month(s) (2025-10) because the source publishes no index level for 2025-10; all summary estimands computed over the remaining 308 months",22 "data_issues": [23 {24 "issue": "2026-10-28 vintage reports no value (empty cpi) for 2025-10",25 "handling": "not imputed; g_t for affected window months (2025-10) reported missing and excluded from means; the latest vintage still governs that month, so the older vintage is not used as a fallback (it does not cover it anyway)"26 },27 {28 "issue": "vintages overlap for 30 months (2014-01..2016-06) with different values (mean abs diff 0.191, max 0.455 index points; seasonal-factor revisions)",29 "handling": "2026-10-28 vintage values used for overlap months per information rule"30 },31 {32 "issue": "for 12 months (2014-01..2014-12) P_t comes from the 2026-10-28 vintage but P_(t-12) only exists in the 2016-07-15 vintage (new extract starts 2014-01), so the ratio mixes vintages",33 "handling": "computed as prescribed by the latest-vintage rule; flagged as a limitation (revision noise in those 12 growth rates)"34 },35 {36 "issue": "cpi_assembled.csv contains assembly errors: months missing ['2016-07'], extra months ['2026-10'], 152 months whose value differs from the rule-based splice (2014-01..2016-06 taken from the old vintage; from 2016-08 on, each new-vintage value is labelled one month late)",37 "handling": "assembled file not used for computation; series rebuilt from the two authoritative vintage files"38 }39 ],40 "n_input_rows": {41 "cpi_vintage_2016-07-15.csv": 834,42 "cpi_vintage_2026-10-28.csv": 153,43 "cpi_assembled.csv": 95744 },45 "random_seed": null,46 "n_months_window": 309,47 "n_months_2001_2013": 156,48 "n_months_2014_2026": 152,49 "missing_growth_months": [50 "2025-10"51 ],52 "sd_growth_12m": 1.740788325953}