condition	mean	min	max
4 h after light	19.499541999999998	14.6137	24.385384
8 h after light	14.0794535	12.108837	16.05007
12 h after light	13.7136365	13.269345	14.157928
4 h after dark	12.5667565	11.485288	13.648225
8 h after dark	11.881348	10.897384	12.865312
12 h after dark	15.450138	15.450138	15.450138