condition	mean	min	max
4 h after light	61.2	61.2	61.2
8 h after light	53.95	48.7	59.2
12 h after light	35.35	31.1	39.6
4 h after dark	47.5	46.4	48.6
8 h after dark	42.3	33.0	51.6
12 h after dark	66.75	55.8	77.7