SFR function per redshift bin (from 0.2 <z< 0.4 in the top left panel to 1.2 <z< 1.4 in the bottom right panel) and per stellar mass bin (dashed-dot blue: 9.5–10 dex, long-dashed green: 10–10.5, short-dashed red: 10.5–11 and dotted black 11–11.5). We show only the best-fit functions using a double-exponential profile and their sum corresponds to the light black solid line. The full SFR function obtained by extrapolating the contribution of galaxies at M⋆ < 10^9.5 M_⊙ is shown with the thick solid black line. The points correspond to IR luminosity functions from the literature converted into SFR functions (red open triangles: Gruppioni et al. 2013; orange open squares: Le Floc’h et al. 2005; brown open circles: Rodighiero et al. 2010; black filled stars: Magnelli et al. 2009). The thick red vertical lines indicate the location of SFR_knee (log ₁₀(SFR_knee) = 0.96, 1.16, 1.34, 1.49, 1.63, 1.76 at z = 0.2–0.4, 0.4–0.6, 0.6–0.8, 0.8–1, 1–1.2, 1.2–1.4)