condition	mean	min	max
4 h after light	40.5	40.5	40.5
8 h after light	38.45	37.7	39.2
12 h after light	33.5	7.3	59.7
4 h after dark	42.95	33.4	52.5
8 h after dark	58.8	34.6	83.0
12 h after dark	71.55	56.1	87.0