condition	mean	min	max
4 h after light	7.1853204999999996	6.675044	7.695597
8 h after light	7.351698	6.938148	7.765248
12 h after light	7.9427895	7.502826	8.382753
4 h after dark	7.7474485	7.655912	7.838985
8 h after dark	8.998991499999999	8.810346	9.187637
12 h after dark	8.40375	8.40375	8.40375