condition	mean	min	max
4 h after light	9.14622	8.584439999999999	9.44887
8 h after light	8.62252	8.22602	8.841510000000001
12 h after light	8.640649999999999	8.3837	8.77407
4 h after dark	10.26526	10.10609	10.56588
8 h after dark	10.472106666666667	10.05485	11.00082
12 h after dark	10.91419	10.74124	11.213280000000001