condition	mean	min	max
4 h after light	8.2975805	7.781594	8.813567
8 h after light	8.866021	8.748069	8.983973
12 h after light	8.280409500000001	7.643449	8.91737
4 h after dark	8.544881499999999	8.420702	8.669061
8 h after dark	9.086618	8.669061	9.504175
12 h after dark	8.775441	8.775441	8.775441