condition	mean	min	max
4 h after light	8.658665	8.20212	9.11521
8 h after light	8.006885	7.95074	8.06303
12 h after light	9.97756	8.97132	10.9838
4 h after dark	12.6683	12.4258	12.9108
8 h after dark	11.76285	11.5575	11.9682
12 h after dark	10.52055	10.215	10.8261