condition	mean	min	max
4 h after light	37.4	37.4	37.4
8 h after light	9.75	1.7	17.8
12 h after light	14.8	14.3	15.3
4 h after dark	49.0	39.1	58.9
8 h after dark	20.15	19.3	21.0
12 h after dark	17.25	15.6	18.9