condition	mean	min	max
4 h after light	3.4	3.4	3.4
8 h after light	10.7	8.1	13.3
12 h after light	12.799999999999999	0.9	24.7
4 h after dark	22.049999999999997	10.2	33.9
8 h after dark	18.05	10.3	25.8
12 h after dark	15.75	14.6	16.9