condition	mean	min	max
4 h after light	0.5	0.5	0.5
8 h after light	11.05	5.0	17.1
12 h after light	3.55	3.3	3.8
4 h after dark	1.65	0.8	2.5
8 h after dark	10.4	8.3	12.5
12 h after dark	15.9	14.3	17.5