condition	mean	min	max
4 h after light	20.1	20.1	20.1
8 h after light	40.3	26.3	54.3
12 h after light	30.0	27.2	32.8
4 h after dark	42.2	35.1	49.3
8 h after dark	24.9	14.0	35.8
12 h after dark	26.55	20.6	32.5