**Table 1:** Survey overview.
Property	Value
Bandwidth covered	42 GHz
Number of lines detected^a	344
Line density	8 GHz^-1 (range: 4-20)
Line intensity range	0.05-80 K
Number of species detected^b	38
Typical RMS reached	$\sim$ 25 mK/1 MHz channel
Total $\int\!{}T_{{\rm A}}~{}{\rm d}v$	2 455^c/2 525^d K $\rm km~s^{-1}$
Total line luminosity^e,f	$5\times10$ ²⁶ W
Mean line-to-continuum ratio^g	0.2

^a Incl. U- and T-lines (see Sect. 4.4). ^b Including isotopologues and C I. ^c Over all lines detected. ^d Over all measured frequencies. ^e Using the expression $2.65 \times T_{\rm r}\times\theta/\lambda$ where $\theta$ = 2.1 $^\prime$ and $\lambda$ is given in centimetres, to find the flux density per beam. ^f Using a beam-filling correction factor of 1.25 for data near 490 GHz. ^g Near 550 GHz.

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