Upper panel: redshift versus the longest rest-frame wavelengths (﹩{\lambda }_{\mathrm{rest}}﹩) of the available ALMA data for each galaxy in our sample. Color indicates whether the source has a spectroscopic redshift (spec-z; red) or a photometric redshift (photo-z; blue). The dark-gray and light-gray shading represent ﹩{\lambda }_{\mathrm{rest}}\lt 160\,\mu {\rm{m}}﹩ and ﹩160\leqslant {\lambda }_{\mathrm{rest}}\lt 250\,\mu {\rm{m}}﹩, respectively. Lower panel: histograms of the longest ALMA ﹩{\lambda }_{\mathrm{rest}}﹩. Color indicates the same subsample as above. The three labels are the percentages of sources with ﹩{\lambda }_{\mathrm{rest}}\lt 160\,\mu {\rm{m}}﹩, ﹩160\leqslant {\lambda }_{\mathrm{rest}}\lt 250\,\mu {\rm{m}}﹩, and ﹩{\lambda }_{\mathrm{rest}}\geqslant 250\,\mu {\rm{m}}﹩, respectively.