condition	mean	min	max
4 h after light	7.855065	6.32688	9.38325
8 h after light	7.900499999999999	6.18396	9.61704
12 h after light	10.339905	8.77881	11.901
4 h after dark	16.17673333333333	12.9839	20.3146
8 h after dark	10.874266666666667	10.7503	11.1088
12 h after dark	7.224546666666667	4.62947	10.5472