condition	mean	min	max
4 h after light	38.5784	37.8127	39.3441
8 h after light	32.9541	31.7895	34.1187
12 h after light	30.3948	29.8899	30.8997
4 h after dark	53.32245	46.0735	60.5714
8 h after dark	45.3202	44.8415	45.7989
12 h after dark	43.8895	41.2818	46.4972