Left: comparison of N = 1, J = 3∕2 → 1∕2 CH column densities derived using WF deconvolution and the XCLASS software presented in Qin et al. (2010). Right: comparison of N, J = 2, 3∕2 → 1, 1∕2 CH column densities derived using WF deconvolution and the simulated annealing algorithm presented in Wiesemeyer et al. (2018). The black solid line represents the weighted fit to the data, while the red dashed line represents a ratio of one. The data points that lie within 1σ intervals of the weighted linear regression are indicated by the grey-shaded regions.