Mass accretion rate (Ṁ_acc, top), the ratio of mass-loss rate in the wind from [O i] to mass accretion rate (middle), and the ratio of outflow force from CO J = 3−2 to mass accretion rate (bottom), vs. L_bol (left), T_bol (middle) and M_env (right). The solid line in the upper-right panel indicates the relationship between Ṁ_acc and M_env from Duarte-Cabral et al. (2013), which is part of the evolutionary models shown in Fig. 1.