The vertical density profiles of thick disc (top panel) and halo (bottom panel) of parameter set 1 (black, thick solid line), set 2 (red, solid line), set 3 (blue, dashed line), set 4 (green, dotted line), and set 5 (cyan, dashed-dotted line). There is no thick disc in set 1. The z ranges of the panels are different. The vertical axis ρ_t and ρ_h are the densities of the thick disc and the halo in units of M_⊙   pc^-3. (A colour version is available on-line.)