condition	mean	min	max
4 h after light	5.16613	5.02645	5.28264
8 h after light	5.188206666666667	5.01291	5.4374199999999995
12 h after light	5.299106666666667	5.03061	5.4636
4 h after dark	5.397796666666667	5.0923300000000005	5.565
8 h after dark	5.18932	5.10971	5.28894
12 h after dark	5.07347	4.96044	5.21016