Population diagrams of CH₃OH at all positions to the south where the molecule is detected in setups 4–5. Each position takes two plots: the one with the name of the position indicated in the lower left corner and the one to the right. Observed data points are shown in various colours as indicated in the upper right corner of the respective left plot, while synthetic data points are shown in grey. No corrections are applied in the respective left panels, while in the right plots corrections for opacity and contamination by other molecules have been considered for both the observed and synthetic populations. The red line is a linear fit to all observed data points (in linear-logarithmic space). The results of the fits are shown in the respective right panels. Teal and black circles show observed data points from spectral windows 0–1 and 2–3 of observational setup 5, respectively, as indicated in the lower left corner in the right panels.