condition	mean	min	max
4 h after light	4.03727	3.92834	4.22878
8 h after light	4.075226666666667	3.8538	4.36279
12 h after light	4.01737	3.9115	4.1759900000000005
4 h after dark	4.074606666666666	3.96854	4.21986
8 h after dark	4.0762599999999996	4.00263	4.22044
12 h after dark	4.0786	3.9317300000000004	4.36287