Top: our best velocity distribution for all pulsars and for the youngest pulsars, together with a single Maxwellian. The vertical dotted lines indicates the median velocities: 313, 370 and 408 km s^-1. Below: fraction f( <v) of pulsars with velocity less than v, for the best mixed model for all pulsars (black), and for the lowest and highest value in the range of σ₁ (red, blue). Solid lines: all pulsars; dashed lines: pulsars with τ_c < 10 Myr. In grey we show the fraction for a single Maxwellian (Hobbs et al. 2005).