condition	mean	min	max
4 h after light	9.9	9.9	9.9
8 h after light	17.799999999999997	16.9	18.7
12 h after light	9.55	1.1	18.0
4 h after dark	15.75	8.2	23.3
8 h after dark	4.6000000000000005	1.3	7.9
12 h after dark	12.850000000000001	6.9	18.8