Local Group SySt population as a function of the galaxy’s visual magnitude. Our results, per galaxy, are shown as green triangles, and their uncertainties are not shown because they are about size of the scatter triangles. The red population range, at M_V of about −21, is the lower limit range derived from the empirical approach. Data from Munari & Renzini (1992), Kenyon et al. (1993), Yungelson et al. (1995), Magrini et al. (2003), Lü et al. (2006) are plotted for comparison; the dotted lines connect the same galaxies in different works. The red dashed line marks the unity.