condition	mean	min	max
0 h after light	15.04745	14.6786	15.4163
4 h after light	15.1228	14.9564	15.2892
8 h after light	17.1981	16.2008	18.1954
4 h after dark	18.079250000000002	16.0439	20.1146
8 h after dark	15.4771	14.5731	16.3811
12 h after dark	13.39115	12.9904	13.7919