condition	mean	min	max
4 h after light	57.7	57.7	57.7
8 h after light	39.5	4.0	75.0
12 h after light	61.05	42.8	79.3
4 h after dark	19.9	14.6	25.2
8 h after dark	29.65	29.2	30.1
12 h after dark	60.6	40.0	81.2