Top: Stacked histogram showing the radial distribution of the galaxies composing the CF4++ dataset. Bottom: Mean bulk flow components along the supergalactic X- (dashed), Y- (dotted), and Z- (dash-dotted) axes and the total bulk flow (solid), as a function of distance from the observer’s location. The coloured bands show the CF4++ results, while the light grey bands show the CF4 measurements. The mean and standard deviation (transparent bands) are calculated using the nearly 10 000 HMC realizations.