condition	mean	min	max
4 h after light	17.4	17.4	17.4
8 h after light	37.6	34.2	41.0
12 h after light	2.8499999999999996	1.9	3.8
4 h after dark	3.45	3.1	3.8
8 h after dark	3.75	2.7	4.8
12 h after dark	11.6	2.5	20.7