Mass growth history of the Milky Way-like Aquarius halos at different radii compared to the fit obtained using our model for r_s and M_s (colour dashed curves) and fitted for z < 6 to avoid the epoch of significant mergers. The dashed orange line indicates the evolution of the scale mass M_s. Setting γ = 2 also gives a reasonable fit as indicated by the dotted grey curve for each halo.