Testing the effect of binning to recover average line relations. We show the intensity of each pixel in the mock-moment-0 map (I_mock) as function of the correponding intensity in the ¹²CO moment-0 map (I_CO. The different mock data are simulated based on ¹²CO data scaled by a line ratio of 0.024, 0.016, 0.007, 0.0036 (aka LR: 41, 62, 142, 277). The expected relation (black dashed line) corresponds to line ratio used to create the mock data (power of 1, offset corresponds to the line ratio). We highlight pixels where I_mock is significantly detected (>3σ, colored data points) and indicate their galactocentric distance by color. We bin I_mock in logarithmic steps of I_CO for all pixels in the FoV (solid line), as well as when only including pixels with significant detections (dotted line). We add the slopes of linear fits fitted to the binned data for the full FoV and the masked data.