Notes. Type of variability, effective temperature (T_eff), distance (d), expansion velocity (v_exp), and range of gas mass-loss rate (Ṁ) including uncertainty, with and without scaling to the same X_CO, d and v_exp used in this paper on the right and left columns, respectively. In case there is only one Ṁ value in the literature with no estimated uncertainty we assumed an error factor of 3, which is the typical uncertainty in mass-loss rates of AGB stars (e.g. De Beck et al. 2010; Ramstedt et al. 2008).

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