condition	mean	min	max
4 h after light	6.31784	2.87467	9.76101
8 h after light	4.627855	4.50303	4.75268
12 h after light	4.015515	3.77891	4.25212
4 h after dark	4.32953	3.27052	5.7109
8 h after dark	3.63221	3.27232	4.02308
12 h after dark	3.730836666666667	3.57801	3.87216