Abundances relative to water measured in comet 67P. Vertical scale: Values obtained in the radio with IRAM 30-m observations in 2021, or with MIRO in 2015 for NH₃ and CO (well lower than the 2021 upper limit). Horizontal scale: Mean values measured in situ around 2015 perihelion with the Rosetta/ROSINA mass spectrometer, from Rubin et al. (2019) and Läuter et al. (2020). If the water production rate used for radio observations has to be re-evaluated to higher values, then all the points have to be shifted down. Each elliptical (in log scale) symbol covers the ±1σ uncertainty domain.