condition	mean	min	max
4 h after light	10.18175	9.261	11.1025
8 h after light	7.24303	6.79856	7.6875
12 h after light	8.445615	7.7856	9.10563
4 h after dark	11.770866666666667	11.4522	12.0354
8 h after dark	13.0249	12.7397	13.3512
12 h after dark	12.3789	11.6208	13.0601