condition	mean	min	max
4 h after light	21.0	21.0	21.0
8 h after light	22.65	19.1	26.2
12 h after light	14.0	6.9	21.1
4 h after dark	35.45	25.9	45.0
8 h after dark	20.75	3.6	37.9
12 h after dark	2.9	1.2	4.6