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; means/extremes are over the 308 computable months (2014-2026 sub-period: 152 of 153 months).",22 "data_issues": [23 {24 "issue": "Vintage 2026-10-28 has no CPI value (empty cell) for 2025-10.",25 "handling": "Not imputed or back-filled from the older vintage (which does not cover it anyway); g_t for that month reported missing and counted; g_t twelve months later lies outside the window."26 },27 {28 "issue": "The two vintages overlap for 30 months (2014-01..2016-06) with revised values (max abs difference 0.455 index points).",29 "handling": "Values from the most recent vintage (2026-10-28) used for overlapping months, per the information rule."30 },31 {32 "issue": "Growth rates for 2014-01..2014-12 divide a 2026-10-28-vintage level by a 2016-07-15-vintage level (different revision/seasonal-adjustment states).",33 "handling": "Kept as required by the 'most recent vintage per month' rule; documented as a limitation."34 },35 {36 "issue": "cpi_assembled.csv uses the older 2016-07-15 vintage for 30 overlap months instead of the latest vintage.",37 "handling": "Assembled file not used for estimation; levels taken directly from the vintage files."38 },39 {40 "issue": "cpi_assembled.csv omits month(s) 2016-07 and 123 of the 123 2026-vintage values from 2016-07 onward appear one month late (series ends at a spurious 2026-10; the missing 2025-10 value appears as 2025-11).",41 "handling": "Assembled file not used for estimation; levels taken directly from the vintage files."42 }43 ],44 "n_input_rows": {45 "cpi_vintage_2016-07-15.csv": 834,46 "cpi_vintage_2026-10-28.csv": 153,47 "cpi_assembled.csv": 95748 },49 "random_seed": null,50 "n_months_window": 309,51 "n_months_growth_2001_2013": 156,52 "n_months_growth_2014_2026": 15253}