condition	mean	min	max
4 h after light	7.12664	6.13215	8.12113
8 h after light	4.3313299999999995	4.20814	4.45452
12 h after light	3.84884	2.78781	4.90987
4 h after dark	7.757375	6.54591	8.96884
8 h after dark	6.68733	6.33567	7.03899
12 h after dark	7.65019	6.96452	8.33586