Results of the multifit on the broad Hα and Hβ for the SNe in the sample. Top left: central wavelength of the Hα line. Top right: full width half maximum of the Hα line. Bottom left: Hα luminosity. Bottom right: ratio of $\frac{\mathrm{H}\alpha }{\mathrm{H}\beta }$ from the values measured for our spectra. The dashed line indicates the division between recombination and collision, which is considered to be 3.1, as in Osterbrock & Ferland (2006) (case B). Data from SN 2010jl taken from Fransson et al. (2014) and from SN 2013L taken from Taddia et al. (2020) are also added given their spectral similarity to the SNe in the sample.