condition	mean	min	max
4 h after light	8.890395000000002	8.18091	9.59988
8 h after light	7.402455	7.31998	7.48493
12 h after light	6.29863	5.81937	6.77789
4 h after dark	7.692773333333333	6.29618	8.46945
8 h after dark	9.33721	7.62614	10.593
12 h after dark	8.968916666666667	8.34412	10.0634