condition	mean	min	max
4 h after light	33.7	33.7	33.7
8 h after light	47.2	40.6	53.8
12 h after light	63.4	55.5	71.3
4 h after dark	46.25	38.2	54.3
8 h after dark	42.15	32.8	51.5
12 h after dark	23.8	22.1	25.5