condition	mean	min	max
4 h after light	3.6056799999999996	2.59874	4.61262
8 h after light	17.384149999999998	15.2275	19.5408
12 h after light	28.526449999999997	27.3467	29.7062
4 h after dark	33.983900000000006	33.8081	34.1597
8 h after dark	20.360149999999997	20.0508	20.6695
12 h after dark	16.47245	15.2785	17.6664