condition	mean	min	max
4 h after light	9.001852	8.6363	9.367404
8 h after light	8.5923775	8.507971	8.676784
12 h after light	7.830725	7.779836	7.881614
4 h after dark	8.5062245	8.341962	8.670487
8 h after dark	7.6692745	7.435125	7.903424
12 h after dark	8.115521	8.115521	8.115521