condition	mean	min	max
4 h after light	7.513086666666666	7.26704	7.7214
8 h after light	7.462073333333334	7.42645	7.53112
12 h after light	7.788480000000001	7.589010000000001	7.94643
4 h after dark	7.51317	7.24515	7.704789999999999
8 h after dark	7.422973333333334	7.316660000000001	7.4836800000000006
12 h after dark	7.21572	6.9976199999999995	7.5658