condition	mean	min	max
0 h after light	20.8282	18.438	23.2184
4 h after light	17.96425	17.903	18.0255
8 h after light	24.20615	21.9629	26.4494
4 h after dark	22.279449999999997	22.0309	22.528
8 h after dark	21.32445	19.293	23.3559
12 h after dark	17.288800000000002	16.7625	17.8151