Orbital parameters (R, e and Z_max) for ∼66 000 field stars from our selected sample and ∼40 open clusters in the solar region. The data are presented in equally distributed bins (q = 14) for field stars (lime squares). In the background, the field stars are also shown on a density plot that is coded according to the black to white colour bar. The symbols and colours are the same as in Fig. 7.