condition	mean	min	max
4 h after light	33.93215	30.3183	37.546
8 h after light	19.1438	17.3417	20.9459
12 h after light	20.25825	20.0512	20.4653
4 h after dark	26.814799999999998	26.1883	27.4413
8 h after dark	45.5403	44.2234	46.8572
12 h after dark	36.2255	35.3001	37.1509