condition	mean	min	max
4 h after light	9.584063333333333	9.357289999999999	9.7019
8 h after light	9.662216666666668	9.3847	9.80315
12 h after light	9.64017	9.512889999999999	9.78232
4 h after dark	9.10928	8.93646	9.27315
8 h after dark	8.93641	8.674719999999999	9.22563
12 h after dark	8.55993	8.33051	8.80223