condition	mean	min	max
4 h after light	7.957039999999999	7.356839999999999	8.34558
8 h after light	8.073096666666666	7.693810000000001	8.54535
12 h after light	7.730816666666667	7.15145	8.17088
4 h after dark	8.01231	7.43133	8.41456
8 h after dark	8.278956666666668	7.97076	8.46751
12 h after dark	8.556049999999999	8.19678	8.75418