condition	mean	min	max
4 h after light	52.1	52.1	52.1
8 h after light	54.05	38.0	70.1
12 h after light	46.55	44.4	48.7
4 h after dark	30.95	29.4	32.5
8 h after dark	44.85	18.5	71.2
12 h after dark	60.55	60.3	60.8