Lefthand panel: cumulative distributions for the pseudo-bolometric peak luminosity with host-extinction correction. SNe Ib and Ic show similar distributions, SNe Ic BL are more luminous. Center panel: Δm₁₅ of SNe Ib, Ic and Ic-BL. There is no significant difference among the three SN classes. Righthand panel: Δm_-10 of SNe Ib, Ic and Ic-BL. Helium-poor SNe show higher values compared to those of SNe Ib. Shaded areas indicate the uncertainties for each SN.