condition	mean	min	max
4 h after light	13.6	13.6	13.6
8 h after light	43.8	38.5	49.1
12 h after light	17.4	16.2	18.6
4 h after dark	45.95	17.7	74.2
8 h after dark	19.950000000000003	17.1	22.8
12 h after dark	16.75	14.5	19.0