condition	mean	min	max
4 h after light	17.513634500000002	15.74906	19.278209
8 h after light	17.8434245	17.375558	18.311291
12 h after light	18.5006025	17.916312	19.084893
4 h after dark	19.91011	17.495506	22.324714
8 h after dark	18.481655500000002	13.807737	23.155574
12 h after dark	15.180718	15.180718	15.180718