condition	mean	min	max
4 h after light	5.173235	4.63954	5.70693
8 h after light	5.96875	5.89158	6.04592
12 h after light	12.8137	12.5445	13.0829
4 h after dark	7.764076666666667	6.92627	9.29832
8 h after dark	5.40892	4.89226	5.96317
12 h after dark	4.348333333333334	3.987	4.63803