1step,rule,n_before,n_after,n_removed,rationale2h1_A,"[origin 2026-04-01, h=1] base month has non-missing gdp_yoy in file",345,343,2,missing value (unpublished GDP)3h1_B,"[origin 2026-04-01, h=1] base month gdp available at origin (<= t-2 = 2026-02-01)",343,338,5,information-availability rule4h1_C,"[origin 2026-04-01, h=1] training target month m+3 observed at origin (<= 2026-02-01)",338,335,3,information-availability rule5h1_D,"[origin 2026-04-01, h=1] drop rows whose regressor or target month lies in 2020-03..2021-12 (pandemic)",335,310,25,pandemic outliers excluded from estimation6