condition	mean	min	max
4 h after light	8.851167	8.190015	9.512319
8 h after light	7.7624875	7.318866	8.206109
12 h after light	8.057838	8.040088	8.075588
4 h after dark	8.0261885	7.30143	8.750947
8 h after dark	8.3628945	8.206109	8.51968
12 h after dark	7.805417	7.805417	7.805417