Distributions of final guiding radii (top), initial guiding radii (middle), and initial galactocentric radii (bottom) of stars whose final galactocentric radii belong to bins of 2 kpc width. Each curve corresponds to the closest same-colour shaded bin of final galactocentric radii. The time interval is from 1 Gyr to 9 Gyr. The vertical dashed lines are the CR (red) and OLR (green) radii at 9 Gyr. The vertical solid green line is the OLR radius at 1 Gyr. In the two bottom lines, the histograms corresponding to stars in radius bins outside the OLR radius at 9 Gyr have been plotted with thicker lines (see next section). The stellar masses M in bins of each histogram are divided by the largest mass M_max contained in a bin of the histogram.