condition	mean	min	max
4 h after light	8.97243	8.41734	9.52752
8 h after light	14.77335	13.979	15.5677
12 h after light	14.42905	14.2355	14.6226
4 h after dark	10.607716666666667	9.99795	10.9626
8 h after dark	7.69274	7.2143	8.21857
12 h after dark	8.849533333333333	8.37055	9.50223