condition	mean	min	max
4 h after light	77.1	77.1	77.1
8 h after light	12.0	10.2	13.8
12 h after light	57.45	38.1	76.8
4 h after dark	69.5	53.8	85.2
8 h after dark	46.7	41.8	51.6
12 h after dark	35.9	30.3	41.5