condition	mean	min	max
4 h after light	10.227395	7.68999	12.7648
8 h after light	10.671825	9.89355	11.4501
12 h after light	16.41395	13.0819	19.746
4 h after dark	19.651049999999998	18.7993	20.5028
8 h after dark	25.8609	24.3032	27.4186
12 h after dark	16.87095	15.0676	18.6743