condition	mean	min	max
4 h after light	4.89287	4.063	5.72274
8 h after light	7.05835	6.51516	7.60154
12 h after light	9.37002	7.31704	11.423
4 h after dark	12.31405	12.0323	12.5958
8 h after dark	10.20015	8.5742	11.8261
12 h after dark	8.71743	8.71494	8.71992