condition	mean	min	max
4 h after light	18.1682755	16.121921	20.21463
8 h after light	12.6090205	12.229462	12.988579
12 h after light	14.368572499999999	13.679553	15.057592
4 h after dark	15.1316515	14.834941	15.428362
8 h after dark	15.1290335	14.829705	15.428362
12 h after dark	16.281001	16.281001	16.281001