condition	mean	min	max
4 h after light	11.87235	11.1036	12.6411
8 h after light	9.299805	8.15681	10.4428
12 h after light	8.546155	7.5157	9.57661
4 h after dark	10.03719	9.93437	10.117
8 h after dark	11.1258	10.644	11.7945
12 h after dark	11.8364	11.2891	12.5585