condition	mean	min	max
0 h after light	15.343799999999998	14.4279	16.2597
4 h after light	5.010755	4.63781	5.3837
8 h after light	10.94102	9.90284	11.9792
4 h after dark	35.67955	27.4652	43.8939
8 h after dark	18.7333	16.6732	20.7934
12 h after dark	18.696350000000002	17.6172	19.7755