condition	mean	min	max
3 h after light	6.27881	3.1321	8.00707
6 h after light	9.958346666666667	9.57114	10.288
9 h after light	19.781533333333332	14.6067	22.486
12 h after light	19.988035	7.65994	25.7994
3 h after dark	16.497766666666667	14.2455	17.7269
6 h after dark	15.1858	14.8419	15.4006
9 h after dark	10.68784	9.54001	12.685
12 h after dark	4.811695	3.76192	5.86147