condition	mean	min	max
4 h after light	7.733095499999999	7.04859	8.417601
8 h after light	6.570159	6.455806	6.684512
12 h after light	6.9571235	6.400133	7.514114
4 h after dark	7.571014	7.246974	7.895054
8 h after dark	6.8815835	6.567185	7.195982
12 h after dark	6.370416	6.370416	6.370416