Top: fractions of stars born in radii r_Origin = 3, 8 and 13 kpc and found in radius r_Final at t = 12 Gyr. 2nd row: numbers of stars born in annuli of radius r_Origin = 3, 8 and 13 kpc and width Δr = 0.5 kpc and found in radius r_Final at t = 12 Gyr. 3d row: Original vs. final guiding radii of stars (solid curve); the shaded area includes ±1σ values (i.e. from 16% to 84% of the stars) and the dotted diagonal line indicates the stellar guiding radii in the absence of radial migration. Bottom: average age of stars vs. Galactocentric radius (solid curve); the shaded aerea includes ±1σ values and the dotted curve indicates the average age of stars formed in situ.