condition	mean	min	max
4 h after light	19.187800000000003	18.4663	19.9093
8 h after light	45.81215	42.1204	49.5039
12 h after light	68.6774	59.2558	78.099
4 h after dark	12.19495	11.5967	12.7932
8 h after dark	15.12585	13.3243	16.9274
12 h after dark	14.14695	13.9195	14.3744