condition	mean	min	max
4 h after light	13.2	13.2	13.2
8 h after light	5.9	5.3	6.5
12 h after light	4.45	3.5	5.4
4 h after dark	12.0	6.1	17.9
8 h after dark	14.25	14.0	14.5
12 h after dark	5.1000000000000005	1.9	8.3