condition	mean	min	max
4 h after light	20.7	20.7	20.7
8 h after light	32.95	14.5	51.4
12 h after light	18.25	12.8	23.7
4 h after dark	13.65	7.0	20.3
8 h after dark	6.1	4.4	7.8
12 h after dark	23.75	14.6	32.9