condition	mean	min	max
4 h after light	7.650710500000001	7.646142	7.655279
8 h after light	7.4929085	7.339675	7.646142
12 h after light	7.97881	7.536851	8.420769
4 h after dark	7.646142	7.646142	7.646142
8 h after dark	8.525664	8.204999	8.846329
12 h after dark	7.142306	7.142306	7.142306