condition	mean	min	max
4 h after light	41.8	41.8	41.8
8 h after light	59.05	58.1	60.0
12 h after light	19.55	14.5	24.6
4 h after dark	23.25	19.8	26.7
8 h after dark	6.15	6.1	6.2
12 h after dark	21.2	14.5	27.9