condition	mean	min	max
4 h after light	9.30002	9.21133	9.41451
8 h after light	9.329229999999999	9.1581	9.524939999999999
12 h after light	9.334153333333333	9.187999999999999	9.595880000000001
4 h after dark	9.2958	9.08671	9.702169999999999
8 h after dark	9.22878	9.01361	9.61771
12 h after dark	9.051663333333334	8.76317	9.2536