condition	mean	min	max
4 h after light	38.168	32.6308	43.7052
8 h after light	18.017	17.9942	18.0398
12 h after light	18.66035	18.2284	19.0923
4 h after dark	30.550266666666666	30.234	30.9747
8 h after dark	43.28686666666667	42.3788	44.2887
12 h after dark	44.3091	42.4914	45.9495