condition	mean	min	max
4 h after light	7.08071	6.87812	7.252739999999999
8 h after light	7.07611	6.72353	7.29217
12 h after light	6.92699	6.46704	7.29295
4 h after dark	7.1339966666666665	6.719460000000001	7.569489999999999
8 h after dark	7.199686666666667	6.86755	7.494680000000001
12 h after dark	7.380926666666666	7.17978	7.52227