Offset from MS as in Fig. 1. We show the DP sample with red dots, the SP-EGNOG sample with blue dots, the COLD GASS sample with grey dots, the low-SF sample with black dots, the ULIRG sample with green dots, the M sample with turquoise dots, and the MEGAFLOW sample with magenta dots. The literature samples are introduced in Sects. 2.2.1–2.2.6 and a detailed description of the MS is given in Sect. 2.3. We show contour lines for the ULIRG sample in green and for the COLD GASS sample combined with the M sample in grey. In the top right, we show the mean uncertainties of all samples and discuss the individual uncertainties for each sample in the text.