condition	mean	min	max
4 h after light	18.005	16.2702	19.7398
8 h after light	21.85895	20.7887	22.9292
12 h after light	17.511400000000002	17.0317	17.9911
4 h after dark	21.399	20.9839	21.6795
8 h after dark	25.358433333333334	24.1211	27.4897
12 h after dark	23.9051	22.9993	25.1335