condition	mean	min	max
4 h after light	63.9	63.9	63.9
8 h after light	97.15	91.7	102.6
12 h after light	71.95	69.2	74.7
4 h after dark	71.55	46.0	97.1
8 h after dark	25.05	23.6	26.5
12 h after dark	31.95	28.9	35.0