condition	mean	min	max
4 h after light	5.265750000000001	5.179130000000001	5.33938
8 h after light	5.27939	5.230659999999999	5.37242
12 h after light	5.1723	5.14025	5.23102
4 h after dark	5.334723333333334	5.2779300000000005	5.38213
8 h after dark	5.324986666666667	5.205830000000001	5.4502
12 h after dark	5.356203333333333	5.24284	5.47573