condition	mean	min	max
4 h after light	4.85483	3.58442	6.12524
8 h after light	5.795825	4.18568	7.40597
12 h after light	7.19018	6.19273	8.18763
4 h after dark	11.5646	10.7387	12.6437
8 h after dark	11.444433333333333	9.6992	12.6729
12 h after dark	7.701533333333334	6.82292	8.7033