Observed GOUS with ALMA mosaics for the ISM category over ALMA Cycles 6-9 (years 2018-2022). Left panel: percentage of GOUS observed with ALMA obtained with the 12 m (blue squares), 12 m + 7 m (orange triangles), and the 12 m + 7 m + TP (red circles) arrays, respectively. The green triangles represents all the GOUS requested without SD observations (i.e., 12 m and/or 12 m+7 m). Right panel: percentage of GOUS observed with ACA in standalone mode including 7 m-only (cyan triangles) and 7 m+TP data (red circles). Fluctuation of 10–20% are expected from Poisson statistics given the typical number of GOUS considered per cycle (~40 per year).