condition	mean	min	max
4 h after light	11.4	11.4	11.4
8 h after light	5.55	1.7	9.4
12 h after light	19.45	11.6	27.3
4 h after dark	2.4	1.3	3.5
8 h after dark	13.25	0.9	25.6
12 h after dark	9.65	3.5	15.8