condition	mean	min	max
4 h after light	8.1491745	8.001169	8.29718
8 h after light	7.9723755	7.490009	8.454742
12 h after light	7.9397135	7.447246	8.432181
4 h after dark	7.1903135	6.50614	7.874487
8 h after dark	7.7509035	6.476955	9.024852
12 h after dark	7.673531	7.673531	7.673531