condition	mean	min	max
4 h after light	7.42001	6.70167	8.13835
8 h after light	6.59067	6.28176	6.89958
12 h after light	8.873584999999999	8.71713	9.03004
4 h after dark	11.70965	11.41	12.0093
8 h after dark	10.64721	9.40002	11.8944
12 h after dark	9.773444999999999	9.34389	10.203