condition	mean	min	max
4 h after light	4.547225	3.51994	5.57451
8 h after light	4.322185	3.69529	4.94908
12 h after light	6.278245	5.68318	6.87331
4 h after dark	11.6909	10.6712	12.7106
8 h after dark	6.235335	5.5153	6.95537
12 h after dark	7.465145	6.91962	8.01067