condition	mean	min	max
4 h after light	13.1625	11.9978	14.3272
8 h after light	7.9802599999999995	7.80622	8.1543
12 h after light	8.93224	8.74115	9.12333
4 h after dark	12.607133333333334	11.507	13.7733
8 h after dark	15.637966666666667	15.1902	16.1705
12 h after dark	16.768166666666666	14.7352	19.8975