condition	mean	min	max
4 h after light	39.2	39.2	39.2
8 h after light	32.75	32.3	33.2
12 h after light	38.15	36.8	39.5
4 h after dark	17.15	7.5	26.8
8 h after dark	18.95	7.4	30.5
12 h after dark	23.15	16.5	29.8