Cumulative distributions of the dust and gas masses of the Herbigs separated into group I and group II. The dust distributions are shown in the left and middle panel in dark gray for group I and light gray for group II. In addition, the gas distributions from Lupus (orange) and Chamaeleon I (green) is shown (Miotello et al. 2017; Long et al. 2017). The fitted probability distributions are shown in the middle panel. The resulting gas-to-dust ratios are presented in the right panel.