NH₃ abundances relative to water measured in comets from centimeter and submillimeter observations (hollow symbols), and near-IR observations (filled symbols). Different colors are used for Jupiter-family comets, dynamically new comets from the Oort Cloud, and long-period comets originating from the Oort Cloud. Downward-pointing arrowheads are 3σ upper limits. Dark blue upward-pointing triangles refer to the measurements of comet F3 from Faggi et al. (2021). The dark blue downward-pointing arrowhead is the value derived in this work. All data used for this figure are tabulated in Tables B.1 and B.2 with the corresponding references.