condition	mean	min	max
4 h after light	6.223956666666667	5.09274	8.22502
8 h after light	4.19554	1.59753	7.03482
12 h after light	5.60713	3.19995	8.47864
4 h after dark	8.45608	6.22669	10.1486
8 h after dark	6.21033	5.66899	7.12138
12 h after dark	7.97198	7.6936	8.40446