condition	mean	min	max
4 h after light	57.7	57.7	57.7
8 h after light	39.1	31.6	46.6
12 h after light	31.2	24.6	37.8
4 h after dark	46.95	31.0	62.9
8 h after dark	70.55	65.3	75.8
12 h after dark	36.7	32.7	40.7