1[2 {"id":"C1","text":"Mean 12-month CPI inflation over 2001-01..2026-09 is 2.574% (308 months with computable growth).","results_keys":["mean_growth_12m","n_analysed"],"status":"supported","caveat":"Excludes 2025-10, for which the source publishes no index level."},3 {"id":"C2","text":"Mean inflation was 2.361% in 2001-2013 and 2.793% in 2014-2026-09, i.e. higher in the later period.","results_keys":["mean_growth_12m_2001_2013","mean_growth_12m_2014_2026"],"status":"supported","caveat":"Later-period mean over 152 months; 2014 months mix two vintages."},4 {"id":"C3","text":"The maximum 12-month inflation was 8.979% in 2022-06; the minimum was -1.959% in 2009-07.","results_keys":["max_growth_12m","max_growth_month","min_growth_12m","min_growth_month"],"status":"supported","caveat":"Pre-2014 values from the 2016-07-15 vintage."},5 {"id":"C4","text":"12-month growth in 2026-09 is 3.717%; in 2020-05 it was 0.198%; in 2016-07 0.868%; in 2014-06 2.098%.","results_keys":["growth_2026_09","growth_2020_05","growth_2016_07","growth_2014_06"],"status":"supported","caveat":"2014-06 uses a 2016-vintage lag; with the 2016 vintage for both terms it would be 2.005%."},6 {"id":"C5","text":"Growth for 2025-10 cannot be computed because the index level is missing in the source; the task is therefore only partially feasible.","results_keys":["n_months_missing_growth","feasibility"],"status":"supported","caveat":"No imputation performed, per the task rules."},7 {"id":"C6","text":"The hand-assembled file cpi_assembled.csv contains a one-month date shift from 2016-07 onward and uses a superseded vintage for 2014-01..2016-06; it was not used.","results_keys":["data_issues"],"status":"supported","caveat":""}8]9