Histograms showing the physical properties of the bona fide PMS stars, split into two age groups where relevant, indicated in blue for PMS stars younger than 32 Myr and in orange for older objects. The panels show the distribution of the ages (panel a), masses (panel b), accretion luminosities (panel c), and mass accretion rates (panel d). The median value of the distributions for younger and older PMS stars are indicated by the dashed vertical line of the respective colour.