condition	mean	min	max
4 h after light	8.1649175	7.619115	8.71072
8 h after light	7.6382165	7.630291	7.646142
12 h after light	8.271814	8.105711	8.437917
4 h after dark	8.122877500000001	7.979991	8.265764
8 h after dark	8.1904435	8.018859	8.362028
12 h after dark	8.018859	8.018859	8.018859