condition	mean	min	max
4 h after light	4.258215	3.72228	4.79415
8 h after light	7.3997	7.3098	7.4896
12 h after light	10.8368	10.1228	11.5508
4 h after dark	9.637595000000001	9.10549	10.1697
8 h after dark	6.849865	6.79506	6.90467
12 h after dark	5.620165	5.44855	5.79178