condition	mean	min	max
4 h after light	38.773799999999994	36.4218	41.1258
8 h after light	16.38505	13.4065	19.3636
12 h after light	4.44639	3.69335	5.19943
4 h after dark	8.132183333333334	7.90744	8.36921
8 h after dark	15.212	13.0257	18.6527
12 h after dark	27.766033333333333	26.4467	28.6976