condition	mean	min	max
0 h after light	39.526650000000004	39.4323	39.621
4 h after light	12.863949999999999	11.2545	14.4734
8 h after light	6.523645	5.35813	7.68916
4 h after dark	20.723	20.2263	21.2197
8 h after dark	22.423699999999997	21.3361	23.5113
12 h after dark	31.182850000000002	30.8395	31.5262