condition	mean	min	max
4 h after light	9.55114	9.52805	9.56279
8 h after light	9.18434	9.08442	9.286010000000001
12 h after light	9.365423333333334	9.07237	9.51679
4 h after dark	9.611906666666668	9.533560000000001	9.69326
8 h after dark	9.642809999999999	9.524289999999999	9.76195
12 h after dark	9.633243333333333	9.555019999999999	9.77561