condition	mean	min	max
4 h after light	7.88866	7.81003	8.008610000000001
8 h after light	7.884833333333333	7.74034	8.00596
12 h after light	8.124413333333333	8.09971	8.1452
4 h after dark	8.031333333333333	7.93527	8.15715
8 h after dark	8.30049	8.19851	8.419260000000001
12 h after dark	8.306939999999999	8.25034	8.38768